Free for the Digital SAT®
- Reading and Writing and Math practice by domain, skill and difficulty
- Two free full-length tests on official timing: Test A and Challenge Test 1
- The Daily, 1,023 vocabulary words and practice games
Free SAT, ACT and AP practice
Practice until the hard ones feel easy.
Original questions with every answer explained, full-length practice tests and a plan to test day. Pick your test to begin. You can switch any time.
I’m preparing for
Free for the ACT®
- English, Math, Reading and Science practice by category and skill
- A free full-length practice test with the real section timing
- Duels with friends and a Summit Sprint to test day
Free for AP®
- Practice by unit and topic, course by course
- Full-length practice exams with a paid plan
- Progress for every course you take
36 free practice questions a day, shared across all your practice, each with a full explanation. No card needed.
36
free practice questions every day, each with a full explanation
98
questions in every full-length SAT, in test-day order
1,023
SAT vocabulary words to browse, flip and quiz
3
tests in one place: the SAT, the ACT and AP exams
A quick run every day. One skill at a time.
- 1
Play the Daily.
A quick run with three hearts. String right answers together and the questions get harder while the points multiply.
- 2
Miss one, learn why.
Every question is tagged by domain and skill, and every answer comes with an explanation.
- 3
Drill that skill.
Practice any single skill at any difficulty, or just the questions you got wrong.
- 4
Beat your best.
Come back tomorrow and climb. Progress shows your accuracy and your strongest skills.
Now try it. Three questions, right here.
From a run of the SAT® Daily. Get one wrong and you see exactly why before the next one loads.
- Three hearts.A miss costs one. The free plan gets one full run every 24 hours.
- Streaks pay.Points double from three in a row and triple from six.
- Beat your best run.Most right before three misses. Come back tomorrow and climb.
The Daily
×1
Points0
If 2x − 7 = 11, what is the value of 3x?
Test day, rehearsed.
Every full-length SAT® practice test runs in the same order and on the same timing as the digital SAT. The second module of each section adapts to how you did on the first.
2:14:00of testing, plus the break
- Reading and Writing, Module 1
- Reading and Writing, Module 2HarderEasier
- Break
- Math, Module 1
- Math, Module 2HarderEasier
98 questions2 hr 14 min of testing, plus a 10-minute breakOn Peakscor’s tests, Module 2 is the harder version if you get 60% or more of Module 1 right.
Highlight the passage
A timer you can see
Flag it for later
Jump with the question map
Free every day. Pay only until test day.
The free plan is the real thing, not a trial. When you want everything, pay for the weeks you actually need.
Free
$0no card needed
Real daily practice for the SAT, ACT and AP.
- The Daily, every day
- 36 practice questions a day, each explained
- SAT and ACT diagnostics
- SAT Test A, Challenge Test 1 and ACT Practice Test 1
- All 1,023 SAT vocabulary words
Test Pass Pay once
$64once
When is your test?In 8 weeks
8 weeks
1 week20 weeks
$8 × 8 weeks, paid once.
- Unlimited practice, no daily limit
- Every full-length and Challenge test
- The full Learn course and Peak Plan
- One payment. It never renews.
Biweekly
$18every 2 weeks
Everything a Test Pass unlocks, two weeks at a time. Good when you don’t have a test date yet.
- Everything in a Test Pass
- Works for the SAT, ACT and AP
- Renews every 2 weeks, cancel anytime online
Prices in US dollars. A Test Pass is $8 for each week until your test, never more than $99 for a test up to 20 weeks away (further out it rises to at most $270), paid once, and ends 3 days after test day. Full refund within 7 days of paying. Under 18? A parent pays: you can send them a payment link.
Questions, answered
36 practice questions every day, each with a full explanation, shared across your SAT, ACT and AP practice. The SAT and ACT diagnostics, SAT full-length Test A and Challenge Test 1, ACT Practice Test 1, The Daily and all 1,023 SAT vocabulary words are free too. No card needed.
The digital SAT, the ACT and AP exams. Choose a test at the top of this page. The ACT side has English, Math, Reading and Science practice, lessons, a 20-question diagnostic and full-length practice tests. The AP side has practice by unit and topic and full-length practice exams. Every question is original.
ACT and AP practice use the same free daily questions as SAT practice. The 20-question ACT diagnostic and ACT Practice Test 1 are free too. Other ACT practice tests and the AP practice exams come with a Test Pass or Biweekly.
Every day at midnight Central Time.
No. Peakscor is an independent practice tool, not affiliated with College Board or ACT Education Corp. Scores shown are estimates.
Your next point starts today.
Free, no card. Your first run takes about five minutes.
Take the free SAT diagnostic
Digital SAT® practice
Reach your peak.
A quick run every day, an explanation for every question, and full-length tests on official timing.
Start here: 20 questions, about 28 minutes. You see your level in every domain and which lessons to take first. Free, no card. You also get 36 practice questions a day: 9 easy, 9 medium, 9 hard and 9 challenging. See what’s free
The DailySTEP 1
- Three hearts. A miss costs one. Free: one run every 24 hours.
- Streaks pay. ×2 from three in a row, ×3 from six.
- Your best run. Most right before three misses.
Full-length tests
Test day, rehearsed.
98 questions across four modules, in the same order and on the same timing as the digital SAT, with a highlighter, a question map and a timer you can see.
How it works
A quick run every day. One skill at a time.
-
1
Play the Daily.
A quick run with three hearts. String right answers together and the questions get harder and the points multiply.
-
2
Miss one, learn why.
Every question is tagged by domain and skill, and every answer comes with an explanation.
-
3
Drill that skill.
Practice any single skill at any difficulty, or just the questions you got wrong.
-
4
Beat your best.
Come back tomorrow and climb. Progress shows your accuracy and your strongest skills.
Built on the digital SAT blueprint.
Every question is tagged by section, domain, skill and difficulty, so you can practice exactly what you need. Full tests run like test day: two Reading & Writing modules, a break, then two Math modules.
Free daily practice
9 easy, 9 medium, 9 hard and 9 challenging questions free every day, each with a full explanation. Filter by section, domain, skill and difficulty. Resets at midnight Central Time.
Test-day timing
Take any test on official timing, extended 1.5× time, or untimed to focus purely on accuracy.
Adaptive full-length tests
Four modules in official order. The second module of each section adapts to how you did on the first.
Vocabulary
1,023 essential SAT words. Browse the list, flip flashcards, or quiz yourself.
Your progress
Accuracy across daily practice and full tests, your strongest skills, and the ones that need the most help.
Games
PEAK Survivor, Peak Hoover and Peak Defense: three games powered by SAT practice questions.
Explanations
Every answer, explained.
Not just the right letter: how to get there, and why the tempting answer is wrong.
MathProblem-Solving and Data AnalysisHard
A store raises the price of a jacket by 20%. Later, it lowers the new price by 20%. The final price is what percent of the original price?
A80%
B96%Correct
C100%The trap
D104%
Check with $100: $100→then$120→then$96
Turn each change into a multiplier.
Up 20% means × 1.20. Down 20% means × 0.80.
Apply them in order.
1.20 × 0.80 = 0.96
Read the answer.
The final price is 96% of the original. That’s B.
Why not 100%?
The 20% cut is taken from the higher price, so it removes more than the 20% increase added.
Test day
What test day looks like.
Every Peakscor full test follows this order. In the standard tests, the second module of each section adapts to how you did on the first.
-
Reading & Writing · Module 1
27 questions32 min
-
Reading & Writing · Module 2
27 questions32 min
Adapts to how you did on Module 1. -
Break
10 min
-
Math · Module 1
22 questions35 min
-
Math · Module 2
22 questions35 min
Adapts to how you did on Module 1.
98 questions · 2 hr 14 min of testing, plus the break
Peakscor by the numbers
- 36free practice questions every day
- 98questions in every full-length test
- 1,023SAT vocabulary words
- 1.5×extended-time option on every test
Plans
Free every day. Pay only until test day.
The free plan is the real thing, not a trial. A Test Pass unlocks everything until your SAT for one payment. Biweekly does the same, two weeks at a time.
Free
$0no card needed
- The Daily, every day
- 36 practice questions a day, each with an explanation: 9 easy, 9 medium, 9 hard, 9 challenging
- Full-length Test A and Challenge Test 1
- All 1,023 vocabulary words: browse, flashcards and quiz
- The 20-question Learn diagnostic
- PEAK Survivor’s first map, plus the opening levels of Peak Hoover and Peak Defense
Biweekly
$18every 2 weeks, cancel anytime
- Everything in the Test Pass
- No test date needed
- Renews every 2 weeks until you cancel
Test Pass
$8a week until your SAT, $99 at most up to 20 weeks away, paid once
- Unlimited practice and every full-length test
- The full Learn course and Peak Plan
- Every game map and level
- Nothing renews
Prices in US dollars. Cancel anytime.
FAQ
Questions, answered.
The Daily, plus 36 practice questions every day: 9 easy, 9 medium, 9 hard and 9 challenging, each with a full explanation. Full-length Test A, Challenge Test 1 and all 1,023 vocabulary words are free too, as are the 20-question diagnostic and PEAK Survivor’s first map. No card needed.
A Test Pass is $8 for each week until your SAT, never more than $99 for a test up to 20 weeks away and never more than $270 for one further out, paid once and never renewed. Biweekly is $18 every 2 weeks and renews until you cancel. Both unlock unlimited practice, every full-length test and Challenge test, the full Learn course, Peak Plan, and every game map and level.
98 questions across four modules, in the same order as the digital SAT: Reading & Writing Module 1 and Module 2 (27 questions each), a 10-minute break, then Math Module 1 and Module 2 (22 questions each). On official timing that’s 2 hr 14 min of testing. You get estimated section scores and a total at the end.
Yes. In the standard full-length tests, Module 2 of each section is the harder version if you get 60% or more of Module 1 right, and the easier version if you don’t. Challenge tests are built from harder material in every module.
Official timing, extended 1.5× time, or untimed, on every test, including the free ones. Extended time allows 48 minutes for each Reading & Writing module and about 52 for each Math module. Untimed removes the clock so you can focus on accuracy.
A quick run with three hearts. Each right answer builds your streak: the questions get harder as it grows, and your points multiply (×2 from three in a row, ×3 from six). A miss costs a heart and drops you back to easy. Best is your longest streak.
Every day at midnight Central Time. You get a fresh 9 easy, 9 medium, 9 hard and 9 challenging.
No. Peakscor is an independent SAT practice tool, not affiliated with the College Board. Scores shown are estimates.
Your next point starts today.
Free, no card.
Your progress
How you’re doing across daily practice and full-length tests.
Account settings
Your sign-in, plan and preferences, in one place.
Your account
Profile
Username…
Others see your username on leagues, duels and your friends list. You can change it once every 7 days.
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To change it we email an 8-digit code to your address first, so only you can do it. Your password is never shown or stored on this device.
Plan and billing
Free plan36 practice questions a day, Test A and Challenge 1.
Manage billing opens Stripe, where you can change or cancel your plan, update your card and download receipts.
Your stuff
Preferences
Help and legal
Practice
Choose a section, then practice a whole domain or drill a single skill.
Full-length tests
Each test mirrors the digital SAT®: 98 questions across four modules, 2 hr 14 min on official timing.
A little harder on purpose. These tests can run slightly tougher than test day, which makes them good practice: if you can handle these, the real one should feel easier. No question appears in more than one test, Challenge Tests included.
Challenge Tests Hardest of the hardest
Same 98-question format, built from harder material: a hard Module 1, then a Module 2 made mostly of the hardest questions.
Vocab
Study the classic SAT® vocabulary list. Browse, flip flashcards, or quiz yourself.
All 1,023 SAT vocabulary words, A to Z
abase
to humiliate, degrade
abate
to reduce, lessen
abdicate
to give up a position of leadership
abduct
to kidnap, take by force
aberration
something that differs from the norm
abet
to aid, help, encourage
abhor
to hate, detest
abide
to put up with; to remain
abject
wretched, pitiful
abjure
to reject, renounce
abnegation
denial of comfort to oneself
abort
to give up on a half-finished effort
abridge
to cut down, shorten
abrogate
to abolish by authority
abscond
to sneak away and hide
absolution
freedom from blame or guilt
abstain
to choose not to do something
abstruse
hard to comprehend
accede
to agree
accentuate
to stress, highlight
accessible
obtainable, reachable
acclaim
high praise
accolade
high praise, special distinction
accommodating
helpful, obliging
accord
an agreement
accost
to confront verbally
accretion
slow growth in size or amount
acerbic
biting, bitter in tone or taste
acquiesce
to agree without protesting
acrimony
bitterness, discord
acumen
keen insight
acute
sharp, severe; keen
adamant
unyielding, immovable
adept
extremely skilled
adhere
to stick to; to follow devoutly
admonish
to caution, criticize, reprove
adorn
to decorate
adroit
skillful, dexterous
adulation
extreme praise
adumbrate
to sketch out vaguely
adverse
unfavorable, dangerous
advocate
to argue in favor of; a supporter
aerial
related to the air
aesthetic
artistic, relating to beauty
affable
friendly, amiable
affinity
a feeling of closeness
affluent
rich, wealthy
affront
an insult
aggrandize
to increase or make greater
aggregate
a whole or total; to gather into a mass
aggrieved
distressed, wronged
agile
quick, nimble
agnostic
believing God's existence cannot be proven
agriculture
farming
aisle
a passageway between rows of seats
alacrity
eagerness, speed
alias
a false name or identity
allay
to soothe, ease
allege
to assert without proof
alleviate
to relieve, make more bearable
allocate
to distribute, set aside
aloof
reserved, distant
altercation
a dispute, fight
amalgamate
to bring together, unite
ambiguous
uncertain, open to interpretation
ambivalent
having opposing feelings
ameliorate
to improve
amenable
willing, compliant
amenity
something that increases comfort
amiable
friendly
amicable
friendly
amorous
showing love
amorphous
without definite shape
anachronistic
out of correct chronological order
analgesic
something that reduces pain
analogous
similar, comparable
anarchist
one who wants to eliminate government
anathema
a cursed, detested thing
anecdote
a short, humorous account
anesthesia
loss of sensation
anguish
extreme sadness, torment
animated
lively
annex
to incorporate territory; an added room
annul
to make void or invalid
anomaly
something that does not fit the normal order
anonymous
unknown, unrecognized
antagonism
hostility
antecedent
something that came before
antediluvian
ancient
anthology
a selected collection of writings
antipathy
a strong dislike
antiquated
old, out of date
antiseptic
clean, sterile
antithesis
the absolute opposite
anxiety
intense uneasiness
apathetic
lacking concern or emotion
apocryphal
fictitious, false
appalling
inspiring shock or horror
appease
to calm, satisfy
appraise
to assess the value of
apprehend
to seize, arrest; to understand
approbation
praise
appropriate
to take, make use of
aquatic
relating to water
arable
suitable for growing crops
arbiter
one who resolves a dispute
arbitrary
based on random factors
arbitration
the act of resolving a dispute
arboreal
relating to trees
arcane
obscure, known by few
archaic
outdated, from an earlier time
archetypal
the most typical example
ardor
extreme vigor, enthusiasm
arid
excessively dry
arrogate
to take without justification
artifact
a remaining piece from an extinct culture
artisan
a craftsman
ascertain
to perceive, learn
ascetic
practicing self-discipline and restraint
ascribe
to assign, credit, attribute to
aspersion
a curse, expression of ill-will
aspire
to long for, aim toward
assail
to attack
assess
to evaluate
assiduous
hard-working, diligent
assuage
to ease, pacify
astute
very clever, crafty
asylum
a place of refuge; an institution for the insane
atone
to repent, make amends
atrophy
to wither away, decay
attain
to achieve, arrive at
attribute
to credit; a trait
atypical
not typical, unusual
audacious
excessively bold
audible
able to be heard
augment
to add to, expand
auspicious
favorable, indicating good things
austere
very bare, bleak
avarice
excessive greed
avenge
to seek revenge
aversion
a particular dislike
balk
to stop, block abruptly
ballad
a love song
banal
dull, commonplace
bane
a burden
bard
a poet
bashful
shy, excessively timid
battery
a power device; assault, beating
beguile
to trick, deceive
behemoth
something of tremendous power or size
benevolent
marked by goodness, doing good
benign
not threatening, mild
bequeath
to pass on, give
berate
to scold vehemently
bereft
devoid of, without
beseech
to beg, plead, implore
bias
a tendency, prejudice
bilk
to cheat, defraud
blandish
to coax by using flattery
blemish
an imperfection, flaw
blight
a plague, disease; something that destroys hope
boisterous
loud and full of energy
bombastic
excessively confident, pompous
boon
a gift or blessing
bourgeois
a middle-class person, capitalist
brazen
excessively bold, brash
brusque
short, abrupt, dismissive
buffet
to strike with force; a spread of food
burnish
to polish, shine
buttress
to support, hold up
cacophony
tremendous, disharmonious noise
cadence
a rhythm, progression of sound
cajole
to urge, coax
calamity
an event with disastrous consequences
calibrate
to set, standardize
callous
harsh, cold, unfeeling
calumny
spreading lies to spoil a reputation
camaraderie
brotherhood, jovial unity
candor
honesty, frankness
canny
shrewd, careful
canvas
cloth an artist paints on; to inspect
capacious
very spacious
capitulate
to surrender
capricious
subject to whim, fickle
captivate
to hold the attention of
carouse
to party, celebrate
carp
to annoy, pester
catalog
to list; a list or collection
catalyze
to charge, inspire
caucus
a meeting of people with a shared goal
caustic
bitter, biting, acidic
cavort
to leap about, behave boisterously
censure
harsh criticism; to rebuke formally
cerebral
related to the intellect
chaos
absolute disorder
chastise
to criticize severely
cherish
to feel affection toward
chide
to voice disapproval
choreography
the arrangement of dances
chronicle
a written history; to record
chronological
arranged in order of time
circuitous
roundabout
circumlocution
indirect and wordy language
circumscribed
marked off, bounded
circumspect
cautious
circumvent
to get around
clairvoyant
able to perceive what others cannot
clamor
loud noise; to loudly insist
clandestine
secret
cleave
to divide into parts; to stick together
clemency
mercy
clergy
members of holy orders
cloying
sickeningly sweet
coagulate
to thicken, clot
coalesce
to fuse into a whole
cobbler
one who makes or repairs shoes
coerce
to force by threat
cogent
intellectually convincing
cognizant
aware, mindful
coherent
logically consistent, intelligible
collateral
secondary; security for a debt
colloquial
characteristic of informal conversation
collusion
secret agreement, conspiracy
colossus
a gigantic statue or thing
combustion
the process of burning
commendation
a notice of approval
commensurate
corresponding in size or amount
commodious
roomy
compelling
forceful, demanding attention
compensate
to make an appropriate payment
complacency
self-satisfied ignorance of danger
complement
to complete, make perfect
compliant
ready to adapt to another's wishes
complicit
being an accomplice in a wrongful act
compliment
an expression of approval
compound
to combine; a combination; a walled area
comprehensive
including everything
compress
to squeeze together
compunction
distress from feeling guilty
concede
to accept as valid
conciliatory
friendly, agreeable
concise
brief and direct
concoct
to fabricate, make up
concomitant
accompanying in a subordinate way
concord
harmonious agreement
condolence
an expression of sympathy
condone
to pardon, overlook
conduit
a channel through which something passes
confection
a sweet, fancy food
confidant
a person entrusted with secrets
conflagration
a great fire
confluence
a gathering together
conformist
one who behaves like others
confound
to frustrate, confuse
congeal
to thicken into a solid
congenial
pleasantly agreeable
congregation
a gathering for religious services
congruity
the quality of being in agreement
connive
to plot, scheme
consecrate
to dedicate to a holy purpose
consensus
an agreement of opinion
consign
to give over to another's care
consolation
an act of comforting
consonant
in harmony
constituent
an essential part
constrain
to forcibly restrict
construe
to interpret
consummate
to complete
consumption
the act of consuming
contemporaneous
existing during the same time
contentious
inclined to quarrel
contravene
to contradict, oppose, violate
contrite
penitent, eager to be forgiven
contusion
a bruise, injury
conundrum
a puzzle, problem
convene
to call together
convention
an assembly; a rule or custom
convivial
marked by feasting and merriment
convoluted
intricate, complicated
copious
profuse, abundant
cordial
warm, affectionate
coronation
the act of crowning
corpulence
extreme fatness
corroborate
to support with evidence
corrosive
tending to erode or eat away
cosmopolitan
sophisticated, worldly
counteract
to neutralize
coup
a brilliant act; the overthrow of a government
covert
secretly engaged in
covet
to desire enviously
credulity
readiness to believe
crescendo
a steady increase in intensity
criteria
standards by which something is judged
culmination
the climax something builds toward
culpable
deserving blame
cultivate
to nurture, refine
cumulative
increasing, building on itself
cunning
sly, clever at deceit
cupidity
greed, strong desire
cursory
brief to the point of being superficial
curt
abruptly and rudely short
curtail
to lessen, reduce
daunting
intimidating
dearth
a lack, scarcity
debacle
a disastrous failure
debase
to lower the quality or esteem of
debauch
to corrupt with sensual pleasures
debunk
to expose the falseness of
decorous
socially proper, appropriate
decry
to criticize openly
deface
to ruin the appearance of
defamatory
harmful to another's reputation
defer
to postpone; to yield to another
deferential
showing respect for authority
defile
to make unclean, impure
deft
skillful, capable
defunct
no longer used or existing
delegate
to hand over responsibility for
deleterious
harmful
deliberate
intentional, carefully considered
delineate
to describe, outline
demagogue
a leader who appeals to prejudices
demarcation
the marking of boundaries
demean
to lower the status of
demure
quiet, modest, reserved
denigrate
to belittle, diminish the opinion of
denounce
to criticize publicly
deplore
to express sorrow or disapproval
depravity
wickedness
deprecate
to belittle, depreciate
derelict
abandoned, run-down
deride
to laugh at mockingly, scorn
derivative
unoriginal, taken from a source
desecrate
to violate the sacredness of
desiccated
dried up, dehydrated
desolate
deserted, dreary, lifeless
despondent
feeling depressed, hopeless
despot
a tyrant who rules brutally
destitute
impoverished, utterly lacking
deter
to discourage, prevent
devious
not straightforward, deceitful
dialect
a variation of a language
diaphanous
light, airy, transparent
didactic
intended to instruct; overly moralistic
diffident
shy, quiet, modest
diffuse
to scatter, thin out; not concentrated
dilatory
tending to delay
diligent
showing care in one's work
diminutive
small or miniature
dirge
a mournful funeral song
disaffected
rebellious, resentful of authority
disavow
to deny responsibility for
discern
to perceive, detect
disclose
to reveal, make public
discomfit
to thwart, baffle
discordant
not in harmony
discrepancy
a difference, failure to correspond
discretion
good judgment; being reserved
discursive
rambling, lacking order
disdain
to scorn; scorn, low esteem
disgruntled
upset, not content
disheartened
feeling a loss of morale
disparage
to criticize or speak ill of
disparate
sharply differing
dispatch
to send off to accomplish a duty
dispel
to drive away, scatter
disperse
to scatter
disrepute
a state of being held in low regard
dissemble
to conceal, fake
disseminate
to spread widely
dissent
to disagree; the act of disagreeing
dissipate
to disappear; to waste
dissonance
lack of harmony or consistency
dissuade
to persuade someone not to do something
distend
to swell out
dither
to be indecisive
divine
godly, exceedingly wonderful
divisive
causing dissent, discord
divulge
to reveal something secret
docile
easily taught or trained
dogmatic
arrogantly certain of unproved principles
dormant
sleeping, temporarily inactive
dour
stern, joyless
dubious
doubtful, of uncertain quality
duplicity
crafty dishonesty
duress
hardship, threat
dynamic
actively changing
ebullient
extremely lively, enthusiastic
eclectic
made of a diverse variety of elements
ecstatic
intensely happy
edict
an order, decree
efface
to wipe out, obliterate
effervescent
bubbly, lively
efficacious
effective
effrontery
impudence, nerve
effulgent
radiant, splendorous
egregious
extremely bad
elaborate
complex, detailed, intricate
elated
overjoyed, thrilled
elegy
a speech honoring a dead person
elicit
to bring forth, draw out
eloquent
expressive, articulate, moving
elucidate
to clarify, explain
elude
to evade, escape
emaciated
very thin, enfeebled
embellish
to decorate; to add details
embezzle
to steal money by falsifying records
emend
to correct or revise a text
eminent
distinguished, famous
emollient
soothing
emote
to express emotion
empathy
sensitivity to another's feelings
empirical
based on observation or experiment
emulate
to imitate
enamor
to fill with love, fascinate
encore
a demand for a repeat performance
encumber
to weigh down, burden
enervate
to weaken, exhaust
enfranchise
to grant the vote to
engender
to bring about, create
enigmatic
mystifying, cryptic
enmity
ill will, hatred, hostility
ennui
boredom, weariness
entail
to include as a necessary step
enthrall
to charm, hold spellbound
ephemeral
short-lived, fleeting
epistolary
relating to or contained in letters
epitome
a perfect example, embodiment
equanimity
composure
equivocal
ambiguous, uncertain
erudite
learned
eschew
to shun, avoid
esoteric
understood by only a select few
espouse
to take up as a cause, support
ethereal
heavenly, exceptionally delicate
etymology
the history and origin of words
euphoric
elated, uplifted
evanescent
fleeting, momentary
evince
to show, reveal
exacerbate
to make more intense
exalt
to glorify, praise
exasperate
to irritate, irk
excavate
to dig out and remove
exculpate
to free from guilt or blame
excursion
a trip or outing
execrable
loathsome, detestable
exhort
to urge, prod, spur
exigent
urgent, critical
exonerate
to free from guilt or blame
exorbitant
excessive
expedient
advisable, serving self-interest
expiate
to make amends for, atone
expunge
to obliterate, eradicate
expurgate
to remove offensive parts
extant
still existing, not lost
extol
to praise, revere
extraneous
irrelevant, unnecessary
extricate
to disentangle
exult
to rejoice
fabricate
to make up, invent
facade
the front of a building; a deceptive appearance
facile
easy; superficial
fallacious
incorrect, misleading
fastidious
meticulous, demanding
fathom
to understand, comprehend
fatuous
silly, foolish
fecund
fruitful, fertile
felicitous
well suited, apt; delightful
feral
wild, savage
fervent
ardent, passionate
fetid
having a foul odor
fetter
to chain, restrain
fickle
shifting in character, inconstant
fidelity
loyalty, devotion
figurative
symbolic
flabbergasted
astounded
flaccid
limp, not firm
flagrant
offensive, egregious
florid
flowery, ornate
flout
to disregard or disobey openly
foil
to thwart, frustrate, defeat
forage
to rummage for food
forbearance
patience, restraint
forestall
to prevent, delay
forlorn
lonely, abandoned, hopeless
forsake
to give up, renounce
fortitude
strength, guts
fortuitous
happening by chance, lucky
forum
a medium for discussion
foster
to promote, encourage
fractious
troublesome or irritable
fraught
filled or accompanied with
frenetic
frenzied, hectic
frivolous
of little importance, trifling
frugal
thrifty, economical
furtive
secretive, sly
garish
gaudy, in bad taste
garrulous
talkative, wordy
genial
friendly, affable
gluttony
overindulgence in food or drink
goad
to urge, spur, incite
gourmand
one fond of eating and drinking
grandiloquence
lofty, pompous language
grandiose
on an exaggerated scale
gratuitous
uncalled for, unwarranted
gregarious
sociable, drawn to others
grievous
injurious, grave in nature
guile
deceitful, cunning behavior
hackneyed
unoriginal, trite
hallowed
revered, consecrated
hapless
unlucky
harangue
a ranting speech; to rant at
hardy
robust, capable of surviving hardship
harrowing
greatly distressing
haughty
disdainfully proud
hedonist
one who pursues pleasure above all
hegemony
domination over others
heinous
shockingly wicked, repugnant
heterogeneous
varied, diverse in character
hiatus
a break or gap
hierarchy
a system with ranked groups
hypocrisy
pretending to believe what one does not
hypothetical
assumed true but unproven
iconoclast
one who attacks common beliefs
idiosyncratic
peculiar to one person
idolatrous
excessively worshipping something
ignominious
humiliating, disgracing
illicit
forbidden, not permitted
immerse
to absorb, deeply involve
immutable
not changeable
impassive
stoic, not showing feeling
impeccable
exemplary, flawless
impecunious
poor
imperative
necessary, pressing; a command
imperious
commanding, domineering
impertinent
rude, insolent
impervious
impenetrable, unaffected
impetuous
rash, hastily done
impinge
to impact; to encroach
implacable
incapable of being appeased
implement
a tool; to put into effect
implicate
to incriminate
implicit
implied, not outwardly obvious
impregnable
resistant to capture
impudent
casually rude, insolent
impute
to ascribe, blame
inane
silly and meaningless
inarticulate
unable to express oneself clearly
incarnate
existing in the flesh; to embody
incendiary
inflammatory; one who agitates
incessant
unending
inchoate
unformed, in a beginning stage
incisive
clear, sharp, direct
inclination
a tendency, propensity
incontrovertible
indisputable
incorrigible
incapable of correction
increment
an enlargement, increase
incumbent
one who holds an office; obligatory
indefatigable
incapable of being tired out
indigenous
originating in a region, native
indigent
very poor, impoverished
indignation
anger at something unjust
indolent
lazy
indomitable
not capable of being conquered
induce
to bring about, stimulate
ineffable
unspeakable, beyond words
inept
not capable, unqualified
inexorable
incapable of being persuaded
inextricable
hopelessly entangled
infamy
notoriety, extreme ill repute
infusion
an injection or permeation of one thing into another
ingenious
clever, resourceful
ingenuous
innocent and candid, not devious
inhibit
to prevent, restrain
inimical
hostile, enemylike
iniquity
wickedness or sin
injunction
an official order or warning
innate
inborn, inherent
innocuous
harmless, inoffensive
innovate
to do something in a new way
innuendo
an insinuation
inoculate
to vaccinate
inquisitor
one who inquires, often hostilely
insatiable
incapable of being satisfied
insidious
appealing but imperceptibly harmful
insinuate
to suggest indirectly
insipid
dull, boring
insolent
rude, arrogant, overbearing
instigate
to urge, goad
insular
narrow-minded; closed off
insurgent
one who rebels
integral
necessary for completeness
interject
to insert between other things
interlocutor
one who takes part in a conversation
interminable
without possibility of end
intimation
an indirect suggestion
intractable
unmanageable, difficult to control
intransigent
refusing to compromise
intrepid
brave in the face of danger
inundate
to flood with abundance
inure
to accustom to something unpleasant
invective
an angry verbal attack
inveterate
firmly established by habit
inviolable
secure from assault
irascible
easily angered
iridescent
showing rainbow colors
irreverence
disrespect
irrevocable
incapable of being taken back
jubilant
extremely joyful
judicious
having sound judgment
juxtaposition
placing two things side by side for comparison
knell
the solemn sound of a bell
kudos
praise for an achievement
laceration
a cut, tear
laconic
terse in speech or writing
languid
sluggish from fatigue or weakness
larceny
theft of another's property
largess
generous giving of gifts
latent
hidden but capable of being exposed
laudatory
expressing praise
lavish
given without limits; to give freely
legerdemain
deception, sleight of hand
lenient
tolerant, gentle
lethargic
sluggish, apathetic
liability
something one is responsible for; a burden
libertarian
advocating liberty and free will
licentious
lacking moral restraint
limpid
clear, transparent
linchpin
something that holds parts together
lithe
graceful, flexible, supple
litigant
someone engaged in a lawsuit
lucid
clear, easily understandable
luminous
brightly shining
lurid
ghastly, sensational
maelstrom
a destructive whirlpool
magnanimous
noble, generous
malediction
a curse
malevolent
wanting harm to befall others
malleable
capable of being shaped
mandate
an authoritative command
manifest
obvious; to show plainly
manifold
diverse, varied
maudlin
weakly sentimental
maverick
an independent nonconformist
mawkish
characterized by sickly sentimentality
maxim
a saying expressing a principle
meager
deficient in size or quality
medley
a mixture of differing things
mendacious
having a lying, false character
mercurial
characterized by rapid change of mood
meritorious
worthy of esteem or reward
metamorphosis
a change of form or substance
meticulous
extremely careful with details
mitigate
to make less severe, alleviate
moderate
not extreme; one with moderate views
modicum
a small amount of something
modulate
to pass from one state to another
mollify
to soften in temper
morass
a swampy bog; something that traps and confuses
mores
the fixed customs of a group
morose
gloomy or sullen
multifarious
having great diversity
mundane
commonplace, worldly
munificence
generosity in giving
mutable
able to change
myriad
consisting of a very great number
nadir
the lowest point
nascent
coming into existence
nebulous
vaguely defined, cloudy
nefarious
heinously villainous
negligent
habitually careless
neophyte
a beginner, inexperienced person
nocturnal
relating to the night
noisome
offensive, especially in smell
nomadic
wandering from place to place
nominal
trifling, insignificant
nonchalant
indifferent, unconcerned
nondescript
lacking distinctive character
notorious
widely and unfavorably known
novice
a beginner
noxious
harmful, unwholesome
nuance
a slight variation in meaning or tone
nurture
to assist the development of
obdurate
unyielding to persuasion
obfuscate
to render incomprehensible
oblique
indirect, not straightforward
oblivious
lacking awareness
obscure
unclear, partially hidden
obsequious
excessively submissive
obsolete
no longer used, out of date
obstinate
stubborn, not yielding
obstreperous
noisy, unruly
obtuse
slow to understand
odious
instilling hatred or displeasure
officious
offering unwanted services
ominous
foreshadowing evil
onerous
burdensome
opulent
characterized by rich abundance
oration
a formal speech
ornate
highly elaborate, excessively decorated
orthodox
conventional, conforming to protocol
oscillate
to sway from one side to the other
ostensible
appearing so, seemingly
ostentatious
excessively showy
ostracism
exclusion from a group
pacific
soothing, peaceful
palatable
agreeable to the taste
palette
a range of colors or qualities
palliate
to reduce the severity of
pallid
lacking color
panacea
a remedy for all ills
paradigm
a perfect pattern or model
paradox
a seemingly contradictory truth
paragon
a model of excellence
paramount
greatest in importance
pariah
an outcast
parody
a satirical imitation
parsimony
frugality, stinginess
partisan
a follower, adherent
patent
readily seen or understood, clear
pathology
a deviation from the normal
pathos
an emotion of sympathy
paucity
small in quantity, scarcity
pejorative
derogatory, uncomplimentary
pellucid
easily intelligible, clear
penchant
a tendency, preference
penitent
remorseful, regretful
penultimate
next to last
penurious
miserly, stingy
perfidious
disloyal, unfaithful
perfunctory
showing little interest or enthusiasm
permeate
to spread throughout, saturate
pernicious
extremely destructive or harmful
perplex
to confuse
perspicacity
shrewdness, perceptiveness
pert
flippant, bold
pertinacious
stubbornly persistent
perusal
a careful examination
pervasive
tending to spread throughout
petulance
rudeness, irritability
philanthropic
charitable, giving
phlegmatic
uninterested, unresponsive
pillage
to seize or plunder
pinnacle
the highest point
pithy
concisely meaningful
pittance
a very small amount of money
placate
to ease the anger of, soothe
placid
calm, peaceful
platitude
an uninspired remark, cliche
plaudits
enthusiastic approval, applause
plausible
believable, reasonable
plenitude
an abundance
plethora
an abundance, excess
pliable
flexible
poignant
deeply affecting, moving
polemic
an aggressive argument against an opinion
portent
an omen
potable
suitable for drinking
potentate
a ruler with great power
pragmatic
practical
precipice
the face of a cliff
preclude
to prevent
precocious
advanced, developing ahead of time
predilection
a preference or inclination
preponderance
superiority in importance or quantity
prepossessing
occupying the mind fully
presage
an omen
prescient
having foreknowledge of events
prescribe
to lay down a rule
presumptuous
disrespectfully bold
pretense
an action intended to deceive
primeval
original, ancient
privation
lacking basic necessities
probity
virtue, integrity
proclivity
a strong inclination
procure
to obtain, acquire
profane
lewd, indecent
profligate
dissolute, extravagant
profuse
plentiful, abundant
promulgate
to proclaim, make known
propagate
to multiply, spread out
propensity
an inclination, preference
propitious
favorable
propriety
the state of being proper, decent
prosaic
plain, lacking liveliness
proscribe
to condemn, outlaw
protean
able to change shape, variable
prowess
extraordinary ability
prudence
caution, good judgment
prurient
having an excessive interest in sex
puerile
juvenile, immature
pugnacious
quarrelsome, combative
pulchritude
physical beauty
punctilious
eager to follow rules
pungent
having a sharp smell or taste
punitive
involving punishment
putrid
rotten, foul
quagmire
a difficult situation
quaint
charmingly old-fashioned
quandary
a perplexed, unresolvable state
quell
to control or suppress
querulous
whiny, complaining
rancor
bitter, long-lasting resentment
rapport
a relationship of mutual understanding
rash
hasty, reckless
raucous
loud and rowdy
raze
to demolish, level to the ground
rebuke
to scold, criticize sharply
rebuttal
a counterargument
recalcitrant
stubbornly uncooperative
recant
to retract a statement
recluse
a person who lives in solitude
reconcile
to restore friendship; to make consistent
rectify
to correct, set right
redoubtable
formidable, worthy of respect
redress
to remedy, make amends for
refract
to bend or distort, as light
refurbish
to renovate, restore
refute
to prove false
regurgitate
to throw back up; to repeat back
relegate
to demote to a lower position
relish
to enjoy greatly
remedial
intended to correct
reminiscence
a recollection or memory
remiss
negligent, careless
renaissance
a rebirth or revival
renounce
to give up, reject
renown
fame, widespread acclaim
repartee
witty, quick conversation
repentant
feeling regret for wrongdoing
replete
abundantly supplied
reprehensible
deserving blame
reprieve
a cancellation or delay of punishment
reproach
to express disapproval of
reprobate
a morally unprincipled person
reprove
to scold, correct
repudiate
to reject, disown
repugnant
causing disgust
reputable
having a good reputation
requiem
a song or service for the dead
rescind
to revoke, cancel
resilient
able to recover quickly
resolute
firmly determined
respite
a period of rest or relief
resplendent
shining brilliantly, splendid
reticent
reserved, reluctant to speak
revere
to regard with deep respect
revoke
to cancel, take back
rhetoric
the art of persuasive speech
ribald
humorously vulgar, lewd
rife
widespread, prevalent
robust
strong and healthy
rogue
a dishonest, unprincipled person
rudimentary
basic, elementary
ruminate
to think deeply about
ruse
a trick, deception
sacrosanct
too important to be interfered with
sagacious
wise, showing keen judgment
salient
prominent, most noticeable
salubrious
healthful
sanctimonious
hypocritically pious
sanction
to approve; also a penalty
sanguine
cheerfully optimistic
sardonic
mocking, cynical
savory
pleasant in taste or smell
scathing
harshly critical
scintillating
sparkling, brilliant
scrupulous
careful and thoroughly honest
scrutinize
to examine closely
sedentary
marked by much sitting, inactive
sedition
inciting rebellion against authority
sensuous
appealing to the senses
serene
calm, peaceful
servile
excessively submissive
sinecure
a position requiring little or no work
singular
exceptional, one of a kind
sinister
threatening evil
skeptic
one who doubts
slander
to make harmful false spoken statements
sloth
laziness
sobriety
seriousness; abstaining from alcohol
solace
comfort in sorrow
solicitous
showing attentive care
soliloquy
a speech made to oneself
solvent
able to pay one's debts
somber
gloomy, dark
sonorous
deep and full in sound
sophistry
clever but deceptive reasoning
sovereign
a supreme ruler; self-governing
spartan
marked by simplicity and self-discipline
specious
seeming true but actually false
sporadic
occurring irregularly
spurious
false, fake
spurn
to reject with contempt
squalor
filth, wretched conditions
squander
to waste
stagnant
not moving, stale
staid
serious and sedate
staunch
firmly loyal, steadfast
stigma
a mark of disgrace
stoic
indifferent to pleasure or pain
stolid
showing little emotion
stratagem
a clever scheme
strident
loud and harsh
stringent
strict, severe
stupefy
to astonish; to make numb
stymie
to block, thwart
suave
smoothly polite and sophisticated
subjugate
to conquer, bring under control
sublime
of outstanding beauty or grandeur
subordinate
lower in rank
subsequent
coming after
subside
to sink or lessen
substantiate
to support with evidence
subtle
delicate, not obvious
subvert
to undermine, corrupt
succinct
brief and clearly expressed
sumptuous
lavish, luxurious
supercilious
arrogantly superior
superfluous
more than needed, unnecessary
supersede
to replace, take the place of
supplant
to take the place of
supple
flexible
surfeit
an excessive amount
surmise
to guess, infer
surmount
to overcome
surreptitious
done secretly
surrogate
a substitute
sycophant
a self-serving flatterer
tacit
understood without being said
taciturn
reserved, saying little
tangential
only slightly relevant
tangible
able to be touched, concrete
tantamount
equivalent in effect
tarnish
to dull or stain
taut
tightly stretched
tedious
tiresome, boring
temerity
reckless boldness
temperance
moderation, self-restraint
tenacious
persistent, holding firmly
tenet
a principle or belief
tentative
uncertain, provisional
tenuous
weak, flimsy
tepid
lukewarm; unenthusiastic
terse
brief and to the point
timorous
timid, fearful
tirade
a long, angry speech
toady
a flatterer, sycophant
torpid
sluggish, lethargic
torrid
very hot; passionate
tortuous
full of twists and turns
tractable
easily managed
tranquil
calm, peaceful
transcend
to rise above, go beyond
transgress
to violate a law or rule
transient
lasting only briefly
translucent
allowing light through diffusely
transmute
to change in form or nature
travesty
a distorted imitation, mockery
treacherous
dangerous; disloyal
tremulous
trembling, timid
trenchant
sharp and forceful in expression
trepidation
fear, apprehension
trite
overused, unoriginal
truculent
aggressively defiant
truncate
to shorten by cutting off
turbulent
violently agitated
turpitude
moral wickedness
tyranny
cruel and oppressive rule
ubiquitous
found everywhere
umbrage
offense, resentment
unctuous
excessively flattering, oily
undermine
to weaken gradually
unheralded
unannounced, unexpected
unkempt
untidy, disheveled
unremitting
never relenting
unwitting
unaware, unintentional
upbraid
to scold sharply
usurp
to seize power wrongfully
usury
lending money at excessive interest
vacillate
to waver, be indecisive
vacuous
empty, lacking meaning
validate
to confirm, authenticate
vapid
dull, lifeless
variegated
marked with different colors
vehement
forceful, intense
venerable
worthy of deep respect
venerate
to revere, honor
veracity
truthfulness
verbose
using too many words
verdant
green with vegetation
vestige
a trace or remnant
vex
to annoy, frustrate
vicarious
experienced through another
vigilant
watchful, alert
vilify
to speak ill of, defame
vindicate
to clear of blame
vindictive
seeking revenge
virtuoso
a masterful performer
virulent
extremely harmful; bitterly hostile
viscous
thick and sticky
vitriolic
filled with bitter criticism
vituperate
to blame or insult harshly
vivacious
lively, spirited
vocation
a career or calling
vociferous
loud and insistent
volatile
unstable, explosive
voluble
talkative, fluent
voracious
having a huge appetite
wan
pale, sickly
wane
to decrease, decline
wanton
deliberate and unprovoked; unrestrained
wary
cautious, watchful
whimsical
playfully odd, fanciful
wily
cunning, crafty
winsome
charming, appealing
wistful
full of yearning or longing
wizened
shriveled, wrinkled with age
wrath
extreme anger
yield
to give way, surrender; to produce
zealous
full of eager enthusiasm
zenith
the highest point
zephyr
a gentle breeze
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What we collect
In your browser only
Some things are saved only in your browser’s local storage and are never sent to us: the calculator’s layout and saved entries, your practice difficulty and timing, the test you chose last (SAT, ACT or AP), your light or dark theme, your weekly recaps, your best scores on the Daily, today’s practice numbers, this week’s computer rival (made from the average of students at your level), a test in progress, your Test-eve checklist, warm-up answers and how-your-test-went answer, and the questions you’ve seen recently. Your game and study settings, your practice and full-test results, your study plan, your diagnostic result and your mistake notebook are kept in your browser too, and a copy is saved to your guest account or account so they can follow you to another device (see below). You can remove the browser copies by clearing your browser’s site data for peakscor.com.
Your daily free-question count is kept in your browser and on our servers, counted per account and per browser, so the free limit works the same in a private window. The browser is identified only by a scrambled (hashed) version of its random ID, and each count is just a number of questions per difficulty for that day.
Guest progress, without an account
So your progress can save, Peakscor creates an anonymous guest account in the background when you visit. It has no name or email address. It is tied to a random ID created when you first visit. It stores:
- your game coins, characters and map progress;
- your game and study settings (for example sound, question difficulty in the games, how explanations are shown, and display and control preferences);
- your practice record: which questions you have seen or missed, your answers to practice questions (which choice, whether it was right, and how long it took), and your accuracy by skill and topic;
- your full-test scores, your study plan (test date, target score, study days) and your diagnostic result;
- your mistake notebook: the questions you missed in Practice, full tests and Learn (the question, its answer choices and explanation, the answer you picked, its skill, when and how many times you missed it), so it is the same on every device you sign in on. A question leaves it when you answer it right, and only your newest 150 are kept;
- which test (SAT, ACT or AP) each piece of your study data belongs to, if you use more than one;
- which parts of Peakscor you used each day (for example, practice, games, the diagnostic or a video), so streaks and your study plan work and so we can count how often each feature is used.
- if you are signed in when your test is near, the day before and the day of your test, which we mark as protected so missing them doesn’t break your streak. We keep these days for 60 days.
Points and weekly leagues
When you answer a Practice question correctly, finish a lesson, master a module, finish the diagnostic or finish a game, you earn points. We store each award with what earned it (for example a question or lesson ID), the points, the day and the time, plus how long you took to answer, and the league tier you are in. Each week you are placed in a league of up to 30 students at your level. Other students in your league see your display name, your points that week and your rank. They never see your email or anything else about you. Turn on “Hide me from leaderboards” on the Leagues page to stop showing up on any leaderboard right away; you still earn points and see your own total. Points from every test (SAT, ACT and AP) count toward the same weekly league; only you see how your points split by test. Points and league results are kept until you delete your account.
Badges and Kip’s outfits
As you study, you earn badges (for example for a 7-day streak, finishing the diagnostic or mastering a unit) and outfits for Kip, the Peakscor mascot. We work them out on our server from what you have already done on Peakscor, and store which badges you earned, when, and which outfit Kip is wearing. Badges and outfits can only be earned, never bought. Only your friends see your badges; other students in a duel with you see Kip’s outfit. They are kept until you delete your account.
Usernames and friends
With an account you can pick a username (3 to 20 letters, numbers or underscores; please don’t use your real name). It is the name other students see on leagues, duels and boards, and it is how friends find you. You can change it once every 7 days; we store when you last changed it. You can add friends by username or with your own friend link, and you choose whether to accept each request. We store who your friends are, the requests you have sent and received (and whether they came by username or link), the students you blocked, your friend link code and whether you take requests by username. Your friends see your username, Kip in the outfit you wear, your badges, your league (tier, rank and points this week, your best league), your study streak and your duel ratings and record. Nobody else sees your friends list, and a student you block can’t send you requests or open your friend link. Friends, requests and blocks are deleted when you delete your account or remove them.
Duels
If you start or join a duel, we store that you are one of its two players (your account ID, never a name or email), its questions, each answer you give (which choice, whether it was right and how long it took), your score and any points it earned you. The other player sees your display name, how many questions you have answered, whether you got each one right once they have answered it too, and your final score. They never see which choice you picked, your email or anything else about you. If you hide yourself from leaderboards, they see “A climber” instead of your name. Anyone you send the link to sees your display name on the invite. Each duel belongs to one test (SAT, ACT or AP), and both players see which. A duel and its answers are deleted 30 days after it ends.
Duel ratings and multiplayer. Rated duels (multiplayer, and friend duels you mark as rated) change your duel rating for that test, which starts at 1000. We store your rating, how many rated duels you won, lost and tied, and your best rating, until you delete your account. Your opponent in a rated duel sees your rating and how much it changed. The Top ratings board shows the 50 highest-rated students’ display names and ratings to everyone signed in; if you hide yourself from leaderboards, you are not on it. Multiplayer matches you with another student: if nobody is free, your duel waits up to a day for the next player, who then plays the same questions.
Playing a bot. If you play a bot in Duels, we store your account ID, which test and bot you picked, the game’s settings and questions, each answer you give (which choice, whether it was right and how long it took) and your score. Nobody else sees it, and it never changes your duel rating or appears on a leaderboard. Which bots you have beaten is kept only on your device.
Timers, leaving a duel and fair play. Each duel question has its own time limit; we store when each question opened, which ones ran out of time, and when your duel page last checked in. If you let 5 questions in a row run out, or your page is gone for 2 minutes during a live duel, you lose that duel. In rated duels only, your duel page also reports, for each question, how long you were away from the duel (in another tab or app), how many times you tried to copy the question, and whether the window was squeezed beside another one. It does not see what you did elsewhere, what other tabs or apps are open, or anything on your screen. A fair-play check combines that with your answer times and right answers to look for outside help (such as a chatbot). If a rated duel is flagged, its rating change is undone for both players. Three flagged rated duels in 14 days pause your rated duels (multiplayer and rated friend duels) for 7 days, then 30 days, then for good; practice, friendly duels and everything else stay open, and the duels page tells you when it ends. If you think a flag was a mistake, email us and a person will review it. We keep the per-question reports with the duel (deleted 30 days after it ends), flags for 180 days, and a pause until 180 days after it ends; all of it is deleted when you delete your account.
Reminders (push notifications)
Reminders (push notifications), only if you turn them on. When you tap “Turn on reminders” and allow notifications, your browser gives us a push address and two encryption keys for this device. We store them with your account id, your time zone (so we never send before 8 AM or after 9 PM where you are) and the date of the last reminder. We send at most one reminder a day: a duel waiting for your turn, your Summit Sprint day, a streak about to slip, or league news. They never include your name, score or email. Turn them off any time on Home, in Progress or in your account (one tap removes every device); deleting your account deletes them too. Unused for 120 days, they are deleted.
Classes
If you join a teacher’s class, we store that you are in the class and the nickname you choose for it. Please don’t use your real name. The teacher sees your nickname and a short summary of your studying: active days in the last week, Learn lessons completed and modules mastered, your diagnostic levels, your practice accuracy by topic, and whether you have finished their assignments. The teacher never sees your email address or your practice answers, and other students never see your data. If you leave the class, or the teacher removes you, the teacher no longer sees any of it. A teacher’s account stores the class name and its join code.
Do Now (live class warm-ups)
A teacher can run a Do Now: a few questions shown on the classroom screen that students answer on their phones with a 6-digit code, signed in or as a guest. We store that you joined (your account ID or guest account ID, never a name or email) and each answer you give (which choice, whether it was right, and when). The classroom screen shows only how many students picked each answer, never names. Other students never see that you joined or what you answered. On their own class page, the teacher sees how many questions each student got right, by class nickname, only for students who are in that class; anyone else is counted without a name. If you make a free account at the end, your answers stay with it. Do Now records are deleted 30 days after the Do Now.
Sharing progress with a parent
With an account you can turn on “Share progress with a parent” on your Account page. It makes a private link (peakscor.com/p/…) to a page for a parent or guardian with your weekly progress: minutes practiced, questions answered and accuracy this week and last week, skills you improved, your estimated score range, your streak, your test or exam date and countdown, and whether your plan is paid and until when. If you type a first name or nickname for the page, it shows that; otherwise it says “Your student”. Please don’t use your full name. The page never shows your questions, answers, mistakes, email address or username.
While the link is on, the app sends us those totals (never your answers) so the page stays current. We store the nickname, the totals, a count of how many times the page was opened (no IP address or device details) and a scrambled fingerprint (hash) of the link, never the link itself; your device keeps the link so you can copy it again. We never send the link to anyone: you copy or share it yourself. Anyone who has the link can open the page, so share it only with your parent or guardian. You can make a new link (the old one stops working right away) or turn it off at any time, which deletes everything about it from our servers; deleting your account deletes it too. The page has no ads or trackers, and search engines are told not to list it.
With an account
- Your email address, used to sign you in and to send sign-in links and password-reset codes. Passwords are handled by our sign-in provider and stored only in hashed form. We never see your password.
- A username or display name. New accounts get an anonymous name like “Brisk Lynx 42” until you pick a username. It is never taken from your email.
- Your progress: everything a guest account stores, plus your Learn lesson and quiz progress, synced across your devices.
- The Summit Sprint, if you join it: the day you joined, your goal, and for each day you finished the daily climb, how many questions you answered, how many were right, how long it took and the points it earned. We don’t keep which questions they were or your answers to them in the sprint. The sprint leaderboard shows your display name, days climbed and sprint points to other students, unless you hide yourself from leaderboards.
- Classes you teach, if any: the class name, its join code and its assignments.
- Billing records, if you buy a plan: your Stripe customer ID and subscription status, or for a Test Pass the test date you chose, when the pass ends and what it cost, plus a record of the purchase agreement: the date, the plan and price, who paid (you or a parent), the payer’s email, and the confirmation that they are 18 or older and agreed to the terms, including automatic renewal for Weekly. Card details go straight to Stripe. We never receive or store them.
Technical information
Like any website, our hosting providers process your IP address and basic request details (such as browser type) to deliver pages and keep the service secure. A sign-in token for your guest account or account is kept in your browser’s local storage. When someone makes an account, we keep the email address they signed up with and scrambled (hashed) versions of their IP address and browser ID for up to 31 days, only to stop disposable email addresses and limit how many accounts one network or browser can create. If a page breaks, your browser may send us a short error report: what went wrong, which page it happened on (without anything after the “?” in the address), the site version and your browser type. Email addresses and sign-in tokens are removed from it, and it doesn’t include your user ID or email address. We keep error reports for about 30 days. We don’t use advertising cookies or third-party analytics tools.
We also count visits to our own pages, without identifying anyone. When a page opens, your browser sends our server the page name, a coarse source (a campaign tag in the link, or the website that sent you), a device size class (phone, tablet or desktop), and whether it is your first visit today. The server adds these to day-by-day totals. It does not save your IP address, your account, a cookie or any device ID with them, so a total can’t be traced back to you. We skip this count entirely if your browser sends a Do Not Track or Global Privacy Control signal.
Kip, your study companion
Kip is your built-in Peakscor study companion, helping you find lessons, understand your progress, and discover what to practice next. Kip is not an AI. You can type a question, and Kip answers by matching your words to Peakscor’s own pages and lessons with fixed rules; its suggestions come from simple rules applied to your own practice, lessons and study plan.
- It works in your browser. Kip reads the progress Peakscor already keeps for you (on your device and, with an account, in your account) to suggest what to study next. It doesn’t send what it reads anywhere, and it doesn’t save anything new on our servers.
- Only your own data. Kip never shows another student’s progress, a class’s results, your essays or payment details.
- What you type stays with you. Questions you type to Kip are matched in your browser and are never saved or sent anywhere, including to any AI company. The conversation disappears when you close or reload the page.
- Who can use Kip. Kip needs an account. Free accounts can use it 5 times a day, and it’s unlimited with a subscription. To keep count, your browser saves how many times you used Kip today and which account used it; that count isn’t sent anywhere.
- One setting on your device. If you turn on tips after each question, that choice is saved in your browser only.
Kip’s earlier AI chat
Until November 2026, Kip was an AI chat. Messages sent to it went to Anthropic, the company that made the AI model, which handled them as a service provider under its commercial terms: it didn’t use them to train its models and deleted them within 30 days, except that it could keep a message for up to 2 years if its safety systems flagged it, or longer if the law required. Old chats stayed only in your browser, and we still keep, for up to 90 days, the daily counts of those messages, which never included any text. Clearing your browser’s site data for peakscor.com removes old chats from your device.
If you’re going through something hard
Kip is a study helper, not a counselor, and nobody at Peakscor is watching what you do with it. If you’re thinking about hurting yourself or you don’t feel safe, call or text 988 (the Suicide & Crisis Lifeline) any time, day or night, and tell a trusted adult, like a parent, school counselor or teacher, right away. If you’re in immediate danger, call 911.
College: essays and applications
College essays are personal, and many of our students are under 18, so College handles them with extra care. Nobody at Peakscor reads your essays as part of running the site, and we don’t use them for anything except saving them for you.
Your drafts
- With an account: we save each draft to your account: its essay type, title, college name, prompt, word limit, text, and when it was created and last changed. Only you can open it. There is no sharing link, and teachers, parents and other students can’t see it. While you write, text that hasn’t saved yet can sit in your browser for a moment; it’s removed once it saves and when you sign out.
- Without an account: drafts are saved only in that browser and never reach our servers. Anyone using the same browser can open them, and clearing your browser data erases them. If you make an account later, you can choose to move them to it.
- Deleting: deleting a draft removes it right away. Deleting your account removes every draft and your checklist. Backups roll off on our database provider’s schedule.
Your application checklist saves the same way: to your account if you’re logged in, or to that browser if you’re not. We keep which items you ticked and when.
Feedback, writing help and Essay Writer
College doesn’t use AI. Feedback, every writing-help tool, the brainstorm tips, the Toolkit helpers and the word counts work in your browser using fixed rules. Your essays, notes and answers are never sent to an AI company or anyone else for this, and the results aren’t saved.
Essay Writer keeps the notes you jot under each paragraph, and the format you picked, in that browser only. They never go into your essay and never reach our servers. They’re removed when you delete that essay or sign out, and clearing your browser data erases them.
Before November 3, 2026, students with an account could ask for AI help, and that text went to Anthropic. If you used it, Anthropic handled the text as described under “Kip’s earlier AI chat” above. We still keep, for up to 90 days, the daily counts of those requests, which never included any text.
If your essay mentions something like self-harm, Feedback shows free, confidential support resources next to it. That check also runs in your browser: nothing about it is recorded or sent to anyone. The same goes for the guidance under “If you’re going through something hard” above.
How we use it
Only to run Peakscor: to sign you in, save and sync your progress and your essay drafts, grade questions, show leaderboards, keep the service secure and fair, handle payments if you buy a plan, and reply when you contact us. We don’t use your data for advertising, and we don’t use it to train AI models.
Who we share it with
We don’t sell or rent personal information. We use a small number of service providers who process data only to run Peakscor:
- Supabase stores account data and handles sign-in, including sign-in emails. Its servers are in the United States.
- Vercel hosts the website.
- Stripe processes payments, only if you buy a plan. Card details go straight to Stripe; Peakscor never sees or stores them.
- Google Fonts supplies the lettering in two of the games (Peak Hoover and Peak Defense). When those games load, Google receives standard technical information such as your IP address.
- Your browser’s push service (Apple for Safari and iPhone/iPad Home Screen apps, Google for Chrome and most Android browsers, Mozilla for Firefox, Microsoft for Edge on Windows): delivers the reminders you turned on. It receives the encrypted reminder (it can’t read it) and the push address your browser created; Peakscor doesn’t choose it, your browser does. Only if you turn reminders on.
We may also share information if the law requires it, or to protect the safety of students or the security of the service.
What other people can see
Game leaderboards are public and show your display name and your scores. They never show your email address. If you join a class, its teacher sees the summary described under “Classes”. In a Do Now, the classroom screen shows only how many students picked each answer, never names (see “Do Now”). In a duel, the other player sees what is described under “Duels”. If you turn on “Share progress with a parent”, anyone with that private link sees what is described under “Sharing progress with a parent”. Other students in your weekly league see your display name, points that week and rank, and the Summit Sprint board shows your display name, days climbed and sprint points, unless you turn on “Hide me from leaderboards”. Nothing else about your account is public.
Students under 13
Peakscor is meant for students 13 and older, and we don’t knowingly collect personal information from children under 13. If you believe a child under 13 has made an account, email us and we will delete it.
Your choices
- Delete your account: open the account menu and choose Delete account. This permanently erases your account and everything stored with it on our servers, and clears Peakscor’s data in that browser.
- Guest data: if you never made an account and want your guest data deleted, email us and we’ll help.
- Share progress with a parent: on your Account page, make a new link or turn it off at any time.
- Clear data on your device: clear your browser’s site data for peakscor.com.
- See, correct or get a copy of your data: email us from the address on your account and we’ll respond within 30 days.
These choices are available to everyone, wherever you live.
How long we keep it
We keep account and guest data until it is deleted. Duels are deleted 30 days after they end, and bot games 30 days after they start. Do Now records (who joined and their answers) are deleted 30 days after the Do Now. Duel fair-play flags are kept for 180 days, and a pause of rated duels until 180 days after it ends. The list of which duel questions you were dealt (so you never get the same one twice) is kept until you delete your account. Kip message counts are kept for 90 days, and your chats with Kip stay on your device until you delete them. When you delete your account, it is erased from our database right away. Copies in our providers’ encrypted backups are overwritten on their normal schedule, usually within a few weeks.
Purchase agreement records are kept for 3 years after a plan ends, even if the account is deleted, because subscription laws require us to be able to show what was agreed to. They are kept apart from the account and used for nothing else.
Security
All traffic is encrypted. Every database table has access rules so that each student can read only their own records, and those rules are tested automatically whenever the code changes. No system is perfectly secure, so if you think something is wrong, tell us right away.
Schools
Peakscor is independent. It isn’t provided by or through any school, and we don’t receive student records from schools. A teacher can make a Peakscor class and invite students with a code; joining is up to each student, and the teacher sees only the class summary described under “Classes”.
Changes
If we change this policy, we will update the date at the top. If a change affects how we use data you’ve already given us, we will tell you on the site before it takes effect.
Contact
Questions or requests: support@peakscor.com.
Terms of Use
Last updated October 25, 2026 (Test Pass prices for test dates more than 20 weeks away; earlier: Biweekly replaces Weekly)
These terms cover your use of Peakscor at peakscor.com. By using Peakscor, you agree to them. If you don’t agree, please don’t use the site.
1. Who can use Peakscor
You must be at least 13 years old to use Peakscor or make an account.
Only adults can buy a plan. The person who pays must be 18 or older. If you are under 18, a parent or guardian buys the plan for you: in the upgrade dialog, choose Under 18? Send this to a parent, and they pay on Stripe’s secure page with their own email and card. The person who pays agrees to these terms for themselves and, when the plan is for a student, on the student’s behalf.
2. Your account
Keep your sign-in details private, use your own email address, and don’t share your account. You are responsible for what happens on your account. You can delete it at any time from the account menu.
3. Free and paid plans
The free plan is free and needs no card. Paid plans (the Test Pass and Biweekly) unlock more practice, tests and lessons, as described on the Pricing page.
- Prices. A Test Pass costs $8 for each week from the day you buy it until the test date you choose (counted in whole weeks, rounded up), and never more than $99 for a test date up to 20 weeks away. For a test date further away the price rises with each extra week, never more than $270, and the exact price is shown before you pay. It is one payment and gives you a paid plan through the end of the third day after that test date (Central Time). Biweekly is $18 every 2 weeks. Prices are in US dollars, and any tax is shown before you pay.
- Payment. Payments are processed by Stripe. Your card details go to Stripe, never to Peakscor. Charges appear under the name Peakscor (a Test Pass may show “TEST PASS”), billed by Auxo Development.
- Automatic renewal (Biweekly only). Biweekly renews automatically at the same price every 2 weeks until you cancel. You are charged at the start of each 2-week period. The Test Pass never renews: it simply ends. Before you pay, checkout shows the price and whether it renews, and asks you to agree.
- Cancel anytime, online. To cancel Biweekly, open the account menu and choose Manage billing, then Cancel plan. A parent who paid can cancel at Stripe’s billing page by entering the email they paid with. Canceling stops all future charges. You keep access until the end of the period you already paid for.
- Refunds. If you’re not happy, email us within 7 days of your first payment and we’ll refund it in full. After that, payments aren’t refunded, except where the law requires it. If you were ever charged by mistake, email us and we’ll fix it.
- Price changes. If we change Biweekly’s price, we’ll email you at least 30 days before it applies, and you can cancel before then. A Test Pass you already bought never costs more.
- Changing plans or test dates. To move from Biweekly to a Test Pass, cancel Biweekly first. If your test date moves after you buy a Test Pass, email support@peakscor.com.
4. Using Peakscor fairly
Please don’t:
- copy, scrape or download our questions, explanations or lessons in bulk, or republish them;
- use bots, scripts or other automated tools on the site;
- cheat on leaderboards or interfere with how the site works;
- try to get into accounts or data that aren’t yours;
- use a display name or report text that is offensive or pretends to be someone else.
5. Our content
Peakscor’s questions, explanations, lessons, games and design are our original work and belong to Peakscor. You may use them for your own studying. Teachers and tutors who want to use them with students should email us first. Read how our questions are made.
6. Feedback
If you send us feedback or report a problem with a question, we may use it to improve Peakscor without owing you anything.
7. Not affiliated with the College Board or ACT
Peakscor is an independent practice tool. It is not affiliated with, endorsed by or sponsored by the College Board or ACT Education Corp. Our questions are original practice in the style of each test, not official test questions. Scores shown on Peakscor are estimates, and we don’t promise any particular result on the SAT, the ACT or any AP exam.
SAT®, AP® and Advanced Placement® are trademarks registered by the College Board, which is not affiliated with, and does not endorse, Peakscor. PSAT/NMSQT® is a registered trademark of the College Board and the National Merit Scholarship Corporation, which are not affiliated with, and do not endorse, Peakscor. Bluebook™ is a trademark of the College Board. ACT® is a registered trademark of ACT Education Corp., which is not affiliated with, and does not endorse, Peakscor. Common App is a trademark of The Common Application, Inc., which is not affiliated with, and does not endorse, Peakscor. Desmos is a trademark of Desmos Studio PBC.
8. Copyright and trademark concerns
If you believe something on Peakscor copies your work or misuses your trademark, email support@peakscor.com and tell us what it is and where it appears. We will reply within one business day and take the content down while we review it.
9. No warranties
We work hard to make Peakscor accurate and reliable, but it is provided “as is.” Questions or explanations may sometimes contain mistakes, and the site may sometimes be unavailable.
College guides and AI writing help are general guidance. They aren’t an official admissions evaluation, they can contain mistakes, and they can’t predict or promise any admissions decision. Requirements change, so confirm them with each college. What you submit is yours: you’re responsible for making sure it’s accurate, it’s your own work, and it follows the rules of the Common App and of each college you apply to, including their rules about AI.
10. Limit of liability
To the extent the law allows, Peakscor is not liable for indirect or consequential losses, and our total liability for any claim is limited to the amount you paid us in the 12 months before the claim, or $50 if you paid nothing.
11. Ending access
You can stop using Peakscor at any time. We may suspend accounts that break these terms. If we ever shut Peakscor down, we will refund the unused part of any paid subscription.
12. Governing law
These terms are governed by the laws of the State of Texas.
13. Changes
We may update these terms. We will change the date at the top, and tell you on the site about any important change before it takes effect.
14. Contact
How our questions are made
Last updated October 28, 2026
Every question, passage, explanation and lesson on Peakscor is original practice in the style of the test it prepares you for. None of it is an official SAT®, ACT® or AP® question, and we are not affiliated with the College Board or ACT.
Our rules
- We never copy or closely paraphrase College Board questions, or questions from any other publisher.
- We never give College Board questions or materials to AI tools, and we never use them as examples to imitate.
- The same goes for the ACT: we never copy or closely paraphrase ACT questions or passages, never give ACT materials to AI tools, and never copy or approximate the score conversion tables ACT uses.
- The structure of the digital SAT and of the ACT is public: their sections, question types, skills and timing. We follow that structure, but the content inside it is ours.
How a question gets written
- Math: most questions come from templates we wrote. Each template builds a new question and computes its answer, so the key is always checked by the math itself.
- Reading and Writing: we use AI tools to help draft passages and questions, modeled only on our own original sample questions. We check questions before they go live, and we audit the question bank regularly for wrong answer keys, questions with two defensible answers, and difficulty labels that are off.
- Lessons: every Learn question is solved blind by a separate reviewer who doesn’t see the answer key. If the reviewer disagrees with the key, or finds two defensible answers, the question is fixed or cut before it goes live.
- ACT: we use AI tools to help write passages and questions, working only from our own original samples and a description of the test we wrote ourselves. Every ACT question is then solved blind by a separate AI reviewer that sees the passage, question and answer choices but never the answer key, and rates every choice. English answers are read back into the passage, Math answers are worked a second way, Science answers are checked against the table or graph as it appears on the page, and Reading answers must be backed by a line of the passage. A question with a disagreement or more than one defensible answer is fixed and checked again, or cut. Nothing ships unchecked.
- AP: historical documents are public domain (for example, the U.S. Constitution) or our own summaries, labeled as summaries. For real past exam questions, we link to the College Board’s AP Central site instead of copying them. We use AI tools to help write new AP practice questions, working only from our own description of each course’s units and topics. Every new question is then solved blind by a separate AI reviewer that never sees the answer key and rates every choice, then checks the explanation. A question with a disagreement, a second defensible answer or a wrong explanation is fixed and checked again, or cut. Each new free-response question is answered blind by a separate AI reviewer, which writes its own full response before it sees the scoring checklist. The reviewer then checks that every point on the checklist is clear, that a correct answer earns every point, and that the sample response is accurate. A question that fails any check is fixed and checked again, or cut. A second reviewer then reads every new free-response question in full, looking for factual slips, scoring rules that are too narrow or too generous, and scenarios too close to a textbook problem or a well-known study. Every question it flags is fixed and checked blind again.
Scores
Scores on Peakscor are estimates based on how you do on our practice questions. They are not official scores and don’t predict an exact result. ACT scores come from our own model, not from ACT conversion tables.
Found a problem?
If a question looks wrong, or you think something is too close to published material, email support@peakscor.com. We reply within one business day and take reported content down while we review it.