Free
$0no card needed
- The Daily, every day
- 36 practice questions a day, each with an explanation: 12 easy, 12 medium, 12 hard
- Full-length Test A and Challenge Test 1
- All 1,023 vocabulary words: browse, flashcards and quiz
Digital SAT practice
Reach your peak.
A quick run every day, an explanation for every question, and full-length tests on official timing.
Free, no card. You also get 36 practice questions a day: 12 easy, 12 medium and 12 hard.
The DailySTEP 1
- Three hearts. A miss costs one.
- Streaks pay. ×2 from three in a row, ×3 from six.
- Your longest streak. Beat it tomorrow.
Full-length tests
The real test, rehearsed.
98 questions across four modules, in the digital SAT’s order and on its timing, with a highlighter, a question map and a timer you can see.
How it works
One run a day. One skill at a time.
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1
Play the Daily.
A quick run with three hearts. String right answers together and the questions get harder and the points multiply.
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2
Miss one, learn why.
Every question is tagged by domain and skill, and every answer comes with an explanation.
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3
Drill that skill.
Practice any single skill at any difficulty, or just the questions you got wrong.
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4
Beat your best.
Come back tomorrow and climb. Progress shows your accuracy and your strongest skills.
Built around the real 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
12 easy, 12 medium and 12 hard questions free every day, each with a full explanation. Filter by section, domain, skill and difficulty. Resets at midnight.
Real SAT 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, Hole 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.
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Reading & Writing · Module 1
27 questions32 min
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Reading & Writing · Module 2
27 questions32 min
Adapts to how you did on Module 1. -
Break
10 min
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Math · Module 1
22 questions35 min
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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.
Pro
$20a month, or $200 a year
- Everything in Free
- Unlimited practice, no daily limit
- Every full-length test and Challenge test
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
Prices in US dollars. Cancel anytime.
FAQ
Questions, answered.
The Daily, plus 36 practice questions every day: 12 easy, 12 medium and 12 hard, each with a full explanation. Full-length Test A, Challenge Test 1 and all 1,023 vocabulary words are free too. 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. 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 digital SAT’s order: 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 use the hardest material throughout.
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. You get a fresh 12 easy, 12 medium and 12 hard.
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.
Command of Evidence (Textual) · Lesson 2
Support or weaken
Some questions ask which finding would most directly weaken the hypothesis. The routine is the same, with one extra step: before you look at the choices, predict what you would expect to see if the hypothesis were true.
A finding that matches that prediction, and that you wouldn't expect as much if the hypothesis were wrong, supports the hypothesis (Lesson 3 shows findings that match but support nothing). A finding that would be surprising if the hypothesis were true, for example because it shows the opposite of what the hypothesis predicts, weakens it. Weakening doesn't mean disproving. The finding only has to make the hypothesis less likely to be true.
Reread the question's verb before you choose. A choice that fits the hypothesis perfectly is the wrong answer to a weaken question, however convincing it sounds.
Then check that the finding really goes against what the hypothesis says. A hypothesis that a kind of plant blooms only in spring is not weakened by finding a few plants of that kind that never bloom at all, because the hypothesis is about when the plants bloom, not whether every one of them does.
Worked example Easy
Red foxes live in many cities, often close to people. Ecologist Helena Marsh hypothesizes that city foxes avoid people by being most active during the hours when the streets are emptiest.
Which finding, if true, would most directly weaken Marsh's hypothesis?
- Tracking collars showed that city foxes were most active between 1 a.m. and 4 a.m., when the streets were emptiest.
- Foxes living in the countryside near the city were most active around dusk.
- City foxes ate more food scraps from garbage bins than countryside foxes did.
- Tracking collars showed that city foxes were most active in the early evening, when the streets were busiest.Answer
How to solve it
- The question says weaken.
- Predict: if Marsh is right, city foxes should be most active when the streets are emptiest.
- A weakening finding shows the opposite: city foxes most active when the streets are busiest. That is the last choice.
Why each choice is right or wrong
- A. Incorrect. This is what Marsh's hypothesis predicts, so it supports the hypothesis. It is the right answer to a support question, not a weaken one.
- B. Incorrect. The hypothesis is about when city foxes are active around people. Countryside foxes don't test it.
- C. Incorrect. What city foxes eat says nothing about the hours when they are active.
- D. Correct. If city foxes were avoiding people by timing their activity, they would not be most active when the streets are busiest. This finding goes directly against the hypothesis.
Worked example Hard
Children raised in homes where two languages are spoken sometimes combine words from both languages in a single sentence, a behavior called code-mixing. Linguist Rafael Ortiz hypothesizes that such children do not begin code-mixing until after age three, because they first need time to learn which words belong to which language.
Which finding, if true, would most directly weaken Ortiz's hypothesis?
- Some children from two-language homes never code-mixed at all, even at age five, though they spoke both languages fluently.
- Recordings showed that most two-year-olds in these homes regularly code-mixed.Answer
- Children from two-language homes code-mixed more often at age five than they did at age four.
- Adults in two-language homes often code-mixed when they spoke with one another.
How to solve it
- The question says weaken. Pin down the claim: children from two-language homes don't start code-mixing until after age three.
- Predict: if Ortiz is right, children younger than three should not code-mix.
- A weakening finding shows young children code-mixing before three. Most two-year-olds regularly code-mixing does that.
- Check the tempting choice. Children who never code-mix feel like bad news for a hypothesis about code-mixing, but Ortiz never said every child will start. He said none start before three, and these children don't.
Why each choice is right or wrong
- A. Incorrect. This is the tempting choice. The hypothesis says children don't begin code-mixing until after three, not that all of them eventually will. Children who never code-mix break no part of that claim.
- B. Correct. The hypothesis predicts no code-mixing before age three. Two-year-olds who regularly code-mix are exactly what the hypothesis says should not happen.
- C. Incorrect. Ages four and five are both after three, when the hypothesis allows code-mixing. A change between those ages doesn't conflict with it.
- D. Incorrect. The hypothesis is about when children begin code-mixing. What adults do doesn't test it.
Trap The perfect fit on a weaken question
A finding that matches the hypothesis exactly is the answer to a support question. On a weaken question it is wrong, no matter how well it fits. Before you choose, reread the verb in the question.
Trap Bad news that doesn't contradict anything
Some choices feel like a problem for the researcher without going against anything the hypothesis says. Ask: if the hypothesis were true, would this finding be any less likely? If not, the finding doesn't weaken the hypothesis.
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 than the real SAT. 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, but every question is drawn from the toughest SAT material: Challenging-tier math throughout and the hardest reading.
Vocab
Study the classic SAT vocabulary list. Browse, flip flashcards, or quiz yourself.
Free every day. Pro when you're serious.
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