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Digital SAT practice
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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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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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Miss one, learn why.
Every question is tagged by domain and skill, and every answer comes with an explanation.
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Drill that skill.
Practice any single skill at any difficulty, or just the questions you got wrong.
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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.
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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
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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.
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Inferences · Lesson 2
What a study does and doesn't show
Many Inferences passages describe a study and then ask what its result means. Before you predict, ask three things: what was compared, what was measured and what was kept the same.
A link is not a cause. When researchers simply observe that two things go together, the result shows a link. It doesn't show that one causes the other, because a third factor may explain both or the cause may run the other way. Researchers have stronger grounds for a cause when they compare groups set up to differ in only one factor, as in a controlled experiment, or when the passage rules out the other likely explanations or describes how the cause works.
Ruling out. Sometimes a passage adds a second finding whose job is to remove a rival explanation. Ask which explanation the new finding makes unlikely, and notice which explanations it leaves untouched.
Scope. A result is evidence about what was studied: these mice, this school, these conditions. A choice that stretches it to every species, every country or all people goes beyond the evidence.
Worked example Easy
In a survey of 2,000 adults, researchers found that people who owned a dog reported walking more minutes per day, on average, than people who did not. The researchers caution, however, that people who already enjoy walking may be more likely to get a dog in the first place. Given this caution, the survey results
Which choice most logically completes the text?
- show a link between owning a dog and walking more but do not by themselves show that owning a dog causes people to walk more.Answer
- prove that getting a dog causes a person to walk more each day.
- show that dog owners walk less, on average, than people without dogs.
- show that only people who enjoy walking ever get dogs.
How to solve it
- What was done: a survey that observed which people own dogs and how much they walk. Nothing was changed or controlled.
- The caution offers another explanation: people who already like walking may be more likely to get a dog. Then walking could lead to dog ownership, not the reverse.
- Prediction: the survey shows the two go together but can't say which causes which. That is choice A.
Why each choice is right or wrong
- A. Correct. Dog owners reported walking more, so there is a link. But the researchers' caution, that walkers may be more likely to get a dog in the first place, means the survey can't show that the dog causes the walking.
- B. Incorrect. Prove and causes are too strong. The caution gives a reason the cause could run the other way.
- C. Incorrect. This reverses the result. Dog owners reported walking more minutes per day, not fewer.
- D. Incorrect. The researchers say walkers may be more likely to get a dog, not that only walkers get dogs. Only goes far beyond the evidence.
Worked example Medium
Historian Tomas Varga studied letters written by workers at a textile mill in the 1840s and 1850s. Letters from before 1851 often complain about long shifts, but letters from after 1851 rarely mention working hours. Some historians have suggested that workers stopped complaining because managers began reading their mail in 1851. Varga, however, found many letters from after 1851 that sharply criticize managers for cutting pay and ignoring unsafe machines. This finding suggests that
Which choice most logically completes the text?
- managers at the mill never read any of the workers' letters.
- the drop in complaints about hours was probably not caused by workers' fear that managers would read their letters.Answer
- working hours at the mill became longer after 1851.
- workers before 1851 complained more about pay than about hours.
How to solve it
- The puzzle: complaints about hours drop after 1851. The rival explanation: workers were afraid because managers began reading their mail.
- Varga's finding: after 1851, workers still sharply criticize managers in their letters. People afraid of being read would avoid exactly that.
- Prediction: fear of being read doesn't explain the silence about hours. That is choice B. Notice what the finding does not show: whether managers actually read the mail.
Why each choice is right or wrong
- A. Incorrect. This is too strong. The finding shows that workers wrote critical letters anyway, not that managers never read them. Managers may have read the letters and workers may simply not have been afraid.
- B. Correct. Workers who feared that managers would read their mail would not sharply criticize managers in it. Since they did, that fear probably doesn't explain why complaints about hours dropped.
- C. Incorrect. Nothing in the passage says hours got longer. If anything, fewer complaints about hours points the other way, but the passage doesn't say what happened to hours at all.
- D. Incorrect. The passage says early letters often complain about long shifts and never compares how often they mention pay. This answers a different question.
Trap The link dressed up as a cause
If a study only observed that two things go together, a choice that says one causes, leads to or proves the other says too much. Unless the passage gives you more, such as a controlled comparison, other explanations ruled out or a description of how the cause works, look for the choice that stops at a link or says may.
Trap The rival that was never tested
When a finding rules out one explanation, a wrong choice often names a different explanation the finding says nothing about. Ask what the finding actually tested. It removes the explanation it was aimed at, not every other possibility.
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.
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