College admission tests · United States

Practice for college admission tests, one weak spot at a time.

Two families of packs: one for the digital SAT®, and one for practice in the ACT® test format, which we call the Three-Section Test. Every question is our own. Start with a free diagnostic, then work on the domains or sections that cost the most points.

Get everything for $99Digital Test Diagnostic
The two tests at a glanceQuestions · time
Digital SAT®: Reading and Writing, 2 modules54 · 64 min
Digital SAT®: Math, 2 modules44 · 70 min
ACT®: English50 · 35 min
ACT®: Math45 · 50 min
ACT®: Reading36 · 40 min
ACT®: Science (optional)40 · 40 min

On the digital SAT®, the second module of each section is harder or easier depending on how the first went, and a calculator is allowed throughout Math. On the ACT®, some questions in each section are unscored, science is optional, and the Composite comes from English, math and reading. The optional ACT® writing essay is not listed. Source: How the SAT® is structured, satsuite.collegeboard.org, Calculator policy, satsuite.collegeboard.org, What's on the ACT® test: sections and structure, act.org, Enhanced ACT® FAQs, act.org, checked 26 Oct 2026.

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Each test has a complete bundle with full-length mocks, or you can buy single packs by math domain, skill or section.

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Digital Test Diagnostic

Questions across both sections with a report by domain. More about it

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Questions

Is this official?

No. Prepanchor is an independent publisher, not affiliated with College Board or ACT Education Corp. Every question and explanation is written by us. We use no College Board or ACT® material, including their practice tests.

Which test should we prepare for?

Check the testing policy of each college on the list first. If either test will do, try a free diagnostic for each: the Digital Test Diagnostic and the Three-Section Test Diagnostic. Each reports by domain or section, so you can see where the work is.

Why don't your product names say ACT?

ACT® is a registered trademark of ACT Education Corp. We use the name only to describe the format our three-section packs follow, so the packs are called Three-Section Test.

I'm a parent. What should I know?

Each pack is for self-study: your teen answers questions and reads a full explanation for each one, in sessions as short as they like. Progress is tracked by topic, so you can sit down together and see what needs work. There's no separate parent login yet. Nothing here predicts an official score, and we never promise a result.

Can I buy just one part?

Yes. Each pack covers one domain, skill or section. If you buy that test's bundle later, what you paid for packs you already own counts toward it at checkout.

Are your mocks the same as the real tests?

No. They follow the published format: the same sections, question counts and times. Digital test mocks have two modules per section, like the real test, but the second module doesn't adapt to the first, and they don't copy the real test's scoring. Each mock ends with an estimated practice range. It is not a prediction of an official score.