SAT® · ACT® · AP®

Free SAT, ACT and AP practice

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.

What you get

36 free practice questions a day, shared across all your practice, each with a full explanation. No card needed.

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
Take the free SAT diagnosticOpen the SAT hub

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
Take the free ACT diagnosticOpen the ACT hub

Not sure which test? Compare the SAT and ACT

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 Pro.

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.

Digital SAT® practice

Reach your peak.

A quick run every day, an explanation for every question, and full-length tests on official timing.

Take the free diagnostic
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.

A Peakscor full-length test in progress: Reading and Writing, Test A, Module 1 of 4, question 7 of 27, with the passage, four answer choices, a highlighter, a 24:18 timer and Flag, Back and Next buttons.

How it works

A quick run every day. One skill at a time.

  1. 1

    Play the Daily.

    A quick run with three hearts. String right answers together and the questions get harder and the points multiply.

  2. 2

    Miss one, learn why.

    Every question is tagged by domain and skill, and every answer comes with an explanation.

  3. 3

    Drill that skill.

    Practice any single skill at any difficulty, or just the questions you got wrong.

  4. 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: $100then$120then$96

  1. Turn each change into a multiplier.

    Up 20% means × 1.20. Down 20% means × 0.80.

  2. Apply them in order.

    1.20 × 0.80 = 0.96

  3. Read the answer.

    The final price is 96% of the original. That’s B.

  4. 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.

  1. Reading & Writing · Module 1

    27 questions32 min

  2. Reading & Writing · Module 2

    27 questions32 min

    Adapts to how you did on Module 1.

  3. Break

    10 min

  4. Math · Module 1

    22 questions35 min

  5. 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. Pro when you’re serious.

The free plan is the real thing, not a trial. Pro removes the limits. Peak adds the full course and a plan to test day.

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
Start free daily practice

Pro

$20a month, or $200 a year

  • Everything in Free
  • Unlimited practice, no daily limit
  • Every full-length test and Challenge test
  • Every game map and level, with progress saved
See Pro

Peak

$29a month, or $280 a year

  • Everything in Pro
  • The full Learn course: every lesson and mastery quiz
  • Peak Plan, day by day to test day
See Peak

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.

Pro is $20 a month or $200 a year: unlimited practice with no daily limit, plus every full-length test and Challenge test, and every game map and level. Peak is $29 a month or $280 a year: everything in Pro, plus the full Learn course and Peak Plan. Cancel anytime from your account.

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.

Functions · Lesson 3

Transformations of graphs

A transformation question starts with a graph of y=f(x)y = f(x) and changes the equation. The key idea: **a change outside ff acts on the outputs (yy), and it does what it looks like. A change inside ff acts on the inputs (xx), and it does the opposite of what it looks like.**

So f(x)+2f(x) + 2 moves the graph up 2, and f(x)−2f(x) - 2 moves it down 2. But f(x−3)f(x - 3) moves the graph 3 units to the right: the output that ff used to give at x=0x = 0 now appears at x=3x = 3, because 3−3=03 - 3 = 0. Likewise f(x+4)f(x + 4) moves it 4 units left.

A negative sign outside, −f(x)-f(x), flips the graph over the xx-axis (every yy changes sign). A negative sign inside, f(−x)f(-x), flips it over the yy-axis (every xx changes sign).

To track one point (a,b)(a, b) through several changes, deal with the inside (the xx-coordinate) and the outside (the yy-coordinate) separately. For the outside, apply the changes in the order you would compute them: multiply first, then add.

Where the point (a,b)(a, b) on y=f(x)y = f(x) goes
New equationEffect on the graph(a,b)(a, b) moves to
y=f(x)+ky = f(x) + kUp kk units (down if k<0k < 0)(a,b+k)(a, b + k)
y=f(x−h)y = f(x - h)Right hh units (left if h<0h < 0)(a+h,b)(a + h, b)
y=−f(x)y = -f(x)Reflect over the xx-axis(a,−b)(a, -b)
y=f(−x)y = f(-x)Reflect over the yy-axis(−a,b)(-a, b)
y=c⋅f(x)y = c \cdot f(x), c>0c > 0Vertical stretch by a factor of cc (a squeeze if c<1c < 1)(a,cb)(a, cb)
y=f(cx)y = f(cx), c>0c > 0Horizontal squeeze toward the yy-axis by a factor of cc (a stretch if c<1c < 1)(ac,b)(\frac{a}{c}, b)
The graphs of y = |x| and y = |x - 3| + 2−5−4−3−2−112345678−2−112345678xy(0, 0)(3, 2)
The graphs of y=∣x∣y = |x| and y=∣x−3∣+2y = |x - 3| + 2 Two V-shaped graphs opening upward with the same shape. The first, y = |x|, has its vertex at (0, 0). The second, y = |x − 3| + 2, has its vertex at (3, 2): the whole V has moved 3 units right and 2 units up.

Worked example Easy

The graph of y=f(x)y = f(x) is translated 4 units to the left and 2 units down. Which equation describes the new graph?

  1. y=f(x−4)−2y = f(x - 4) - 2
  2. y=f(x+4)−2y = f(x + 4) - 2Answer
  3. y=f(x−4)+2y = f(x - 4) + 2
  4. y=f(x+4)+2y = f(x + 4) + 2

How to solve it

  1. Down 2 is a change to the output, outside ff: subtract 2.
  2. Left 4 is a change to the input, inside ff, and inside changes do the opposite of what they look like: left means x+4x + 4.
  3. Put them together: y=f(x+4)−2y = f(x + 4) - 2.

Why each choice is right or wrong

  • A. Incorrect. f(x−4)−2f(x - 4) - 2 moves the graph down 2 but 4 units to the right. Inside ff, subtracting moves the graph right.
  • B. Correct. x+4x + 4 inside ff moves the graph 4 units left, and −2-2 outside moves it 2 units down.
  • C. Incorrect. f(x−4)+2f(x - 4) + 2 reverses both directions: it moves the graph 4 right and 2 up.
  • D. Incorrect. f(x+4)+2f(x + 4) + 2 gets the left shift right but moves the graph 2 units up. Down 2 means subtract 2 outside ff.

Worked example Medium

The point (3,−5)(3, -5) lies on the graph of y=f(x)y = f(x). Which point must lie on the graph of y=−f(x−2)+1y = -f(x - 2) + 1?

  1. (1,6)(1, 6)
  2. (5,−4)(5, -4)
  3. (5,4)(5, 4)
  4. (5,6)(5, 6)Answer

How to solve it

  1. Inside: x−2x - 2 must equal 3 for ff to use its known input, so x=5x = 5. The point moves 2 units right.
  2. Outside, compute in order: f(3)=−5f(3) = -5, then the negative sign gives −(−5)=5-(-5) = 5, then add 1 to get 6.
  3. Check: at x=5x = 5, y=−f(5−2)+1=−f(3)+1=5+1=6y = -f(5 - 2) + 1 = -f(3) + 1 = 5 + 1 = 6. The point is (5,6)(5, 6).

Why each choice is right or wrong

  • A. Incorrect. (1,6)(1, 6) moves the point 2 units left. x−2x - 2 inside ff shifts the graph right, so the new xx is 3+2=53 + 2 = 5.
  • B. Incorrect. (5,−4)(5, -4) skips the reflection and just adds 1 to −5-5. The negative sign in front of ff changes −5-5 to 5 before you add 1.
  • C. Incorrect. (5,4)(5, 4) adds 1 before reflecting: −(−5+1)=4-(-5 + 1) = 4. In −f(x−2)+1-f(x - 2) + 1, the sign applies to ff alone, so you get 5+1=65 + 1 = 6.
  • D. Correct. The xx-coordinate becomes 3+2=53 + 2 = 5 and the yy-coordinate becomes −(−5)+1=6-(-5) + 1 = 6.

Trap Inside shifts go the opposite way

In f(x−3)f(x - 3), the minus sign tempts you to move left. A choice with the reversed shift is a common distractor. Test a point: the graph's old point at x=0x = 0 now shows up where x−3=0x - 3 = 0, at x=3x = 3, so the move is to the right.

Trap Stretching when the graph squeezes

In f(2x)f(2x), the 2 is inside, so it acts on xx in the opposite way: the graph squeezes toward the yy-axis and every xx-coordinate is halved. A choice that doubles the xx-coordinates is the classic wrong answer.

Calculator When a calculator is faster

When a question gives a specific function, Desmos settles transformation questions in seconds: graph the original, then graph each choice and see which one matches the described move. To learn the rules, add a slider: type y = abs(x - h) + k and drag hh and kk to watch the V move.

When the question only says y=f(x)y = f(x) with no formula, there is nothing to graph. Track one point by hand instead, using the table above.

Your progress

How you’re doing across daily practice and full-length tests.

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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.

Free every day. Pro when you're serious.

Practice free every day. Pro removes the limits. Peak adds the full course and a plan to test day.

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  • ✓ 9 easy + 9 medium + 9 hard + 9 challenging daily
  • ✓ Practice by any SAT domain
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  • ✓ The 20-question Learn diagnostic
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$200/ year
About $16.67 a month, save $40
  • ✓ Everything in Free
  • ✓ Unlimited daily practice
  • ✓ Every full-length and Challenge test
  • ✓ Every game map and level, with progress saved
Full course and plan

PEAK

$280/ year
About $23.33 a month, save $68
  • ✓ Everything in Pro
  • ✓ Every Learn lesson, summary and mastery quiz
  • ✓ Peak Plan: a day-by-day plan to test day
  • ✓ Cancel anytime

Prices in USD. Switch or cancel your plan at any time.

Privacy Policy

Last updated October 10, 2026

Peakscor is an independent SAT®, ACT® and AP® practice website at peakscor.com, built and run by its student founders in Houston, Texas. This policy explains what we collect, why, and what you can do about it. If anything here is unclear, email support@peakscor.com.

The short version

  • You can practice without an account. Your progress saves to an anonymous guest account with no name or email, and some of it stays only in your browser.
  • If you make an account, we also keep your email address, so your progress can sync across devices.
  • We don’t sell your data, show ads, or use third-party analytics or advertising trackers.
  • Peakscor is for students 13 and older.
  • Kip, our AI tutor, sends the messages you write to it to Anthropic, the company that makes the AI, so it can answer. Your chats with Kip stay on your device. Our servers keep only how many messages you sent, never what you wrote.
  • Points you earn put you in a weekly league where other students see your display name, points and rank. You can hide yourself from leaderboards at any time.
  • You can delete your account and its data at any time from the account menu.

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 best scores on the Daily, today’s practice numbers, a test in progress, the questions you’ve seen recently, and the copies of missed questions in your mistake notebook. Your game and study settings, your practice and full-test results, your study plan and your diagnostic result 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;
  • 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.

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. Other students don’t see your badges. They are kept until you delete your account.

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), the five 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.

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 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.

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 display name. New accounts get an anonymous name like “Climber 4F2A1”. 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 ever buy a plan: your Stripe customer ID and subscription status. 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.

Kip, the AI tutor

Kip is Peakscor’s study helper. Kip is an AI (a computer program), not a person, and it can make mistakes, so check anything important against the lesson or the question’s explanation. Kip is turned off during full tests, the diagnostic and mastery quizzes.

What happens when you message Kip

  • Your chats stay on your device. Your messages and Kip’s replies are saved only in your browser’s local storage. Peakscor’s servers don’t keep what you write or what Kip answers: it isn’t saved in our database or in our logs. Because we don’t keep chats, we can’t show them to anyone, including a parent or a teacher, and we can’t get them back if they’re deleted.
  • Each message is sent to Anthropic to get an answer. Anthropic makes Claude, the AI model behind Kip. With each message, our server sends Anthropic what you typed, the recent messages in that chat, what you’re looking at (for example the question on your screen and, once you’ve answered it, your answer and the explanation), and a short summary of your own study progress: for example your weakest skills, questions you recently missed, Learn modules you’ve finished, your diagnostic levels, and your study plan’s test date and target score. We don’t send your name, email address, display name or account ID.
  • Please don’t share personal details like your full name, address, phone number or school with Kip. Kip doesn’t need them, and anything you type is sent to Anthropic.

How Anthropic handles your messages

Anthropic handles messages for us as a service provider, under its commercial terms. Those terms say Anthropic doesn’t use them to train its AI models. Anthropic deletes them within 30 days, except that it can keep a message for up to 2 years if its safety systems flag it as breaking Anthropic’s usage policy, or for longer if the law requires.

What we keep

For each account and guest account, we count how many messages were sent each day and estimate what they cost, so the daily limits work. We keep these counts for 90 days. For the whole site, without recording who, we also count how many times each kind of safety topic came up each day (for example, someone asking Kip to help cheat, or someone who seemed to be in crisis). None of these counts include anything anyone wrote.

Daily limits

Kip answers a limited number of messages a day: right now 10 on the free plan (and for guests), 30 on Pro and 60 on Peak. Limits reset at midnight Central Time. We may change them, and Kip may take a break for everyone for the rest of the day if Kip’s daily budget runs out.

Deleting your chats

Open Kip’s menu and choose Delete history to erase every chat with Kip on that device. Signing out or deleting your account also clears them. Messages already sent to Anthropic are deleted on Anthropic’s schedule above.

If you’re going through something hard

Kip is a study helper, not a counselor. Nobody at Peakscor reads your chats, so Kip can’t send anyone to help you. 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.

How we use it

Only to run Peakscor: to sign you in, save and sync your progress, grade questions, answer your questions to Kip, 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.
  • 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.
  • Anthropic provides the AI model behind Kip. Only when you use Kip, it receives the messages you send and the information listed under “Kip, the AI tutor”. It doesn’t receive your IP address, name or email address.

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 duel, the other player sees what is described under “Duels”. 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.
  • Delete your chats with Kip: open Kip’s menu and choose Delete history.
  • 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. 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.

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 10, 2026

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. If you are under 18, please read these terms with a parent or guardian, and get their permission before buying a plan.

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 (Pro and Peak) unlock more practice, tests and lessons, as described on the Pricing page. Online payment has not launched yet. When it does, these rules apply:

  • Plans are subscriptions billed by Stripe, monthly or yearly. The price and renewal period are shown before you pay.
  • Subscriptions renew automatically until you cancel. You can cancel any time under Manage billing in the account menu. You keep access until the end of the period you paid for.
  • If you were charged by mistake, or something went wrong with a charge, email us within 14 days and we’ll refund it.
  • If we change a price, we will tell you before your next renewal at the new price.

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. 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.

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

support@peakscor.com

How our questions are made

Last updated October 10, 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.

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.