The review book that grades you.
Clear unit reviews, 300+ exam-style questions with instant feedback, and step-by-step solutions you can trust. Start free, no account needed.
✓ Every solution independently verified · Built by educators, priced like a review book
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Score calculator
Slide your multiple-choice and FRQ scores and see your estimated 1–5. Know exactly what you need for your target score.
Calculate my score →Formula sheet
The AP Calc AB exam gives you no formula sheet. Ours has every derivative, integral, and theorem you must memorize, in a printable page.
Get the formula sheet →90 practice questions
Units 1 and 2 are fully free: 90 exam-style questions with instant grading and full worked solutions. See how our practice feels before paying a cent.
Start practicing →Every unit of AP® Calculus AB
Plain-English concept reviews, worked examples, and common-mistake callouts. Units 1–2 are completely free.
Practice that feels like the real exam
Not just more questions. Better ones.
Instant feedback
Every question grades itself the moment you answer, with a full step-by-step solution instead of a bare answer key.
Weak-topic reports
Finish a set and see exactly which topics cost you points, with direct links to the review sections that fix them.
2 full-length exams
Real AP format and timing: calculator and no-calculator sections, FRQs with point-by-point scoring rubrics.
One price. Everything. Forever.
Less than a review book, and it grades you.
- All 8 unit reviews with worked examples
- 300+ exam-style questions with verified solutions
- 2 full-length practice exams with FRQ rubrics
- Weak-topic reports after every practice set
- Access through your exam day, no subscription
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Get the free formula sheet
Every formula you must memorize for exam day, in one printable PDF. We'll also send occasional study tips. Unsubscribe anytime.
Questions, answered
Is this affiliated with the College Board?
No. Alta Prep is independent. AP® is a trademark registered by the College Board, which is not affiliated with, and does not endorse, this site. Every question here is original, written and verified by us, never copied from real exams.
How do I know the solutions are correct?
Every question is solved independently by computer algebra software before it's published, and a sample of each unit is re-worked by hand. Spot an error anyway? Every page has a report button, and fixes ship within days.
Is $19 really one-time? What's the catch?
One-time, no subscription, access through your exam day. The catch is there isn't one — we'd rather be the obvious yes at the price of a review book.
What if it doesn't help me?
Seven-day refund, no questions asked. Email us and it's done.