Compare AP prep
Head-to-head comparisons of the AP prep options we review: Fiveable, UWorld, Albert, Princeton Review’s books and Khan Academy. The biggest difference is the pricing model: Fiveable covers every subject for one price, while UWorld, Albert and books are per subject.
Sources: each provider’s own pricing pages and publisher listings for books. Checked October 12, 2026.
| Provider | Price | Pricing model |
|---|---|---|
| Fiveable | $79/year or $29/month | All 42 subjects |
| UWorld | From $99 for 30 days | Per subject (15 subjects) |
| Albert | $79 per subject | Per subject; free if your school licenses it |
| Princeton Review | About $20-$28 | One book per subject |
| Khan Academy | Free | Free AP courses |
All subjects against one subject in depth.
→The same $79, for all subjects or one.
→Two per-subject platforms.
→Online question bank against a book.
→Paid all-subject platform against free College Board-aligned courses.
→All-subject subscription against a $20-$28 book per subject.
→Paid practice questions against free coursework.
→$79 online practice, free through some schools, against a book.
→A low-cost book with full-length tests against free courses.
→Common questions
What is the cheapest AP prep?
Khan Academy is free. Among paid options, a Princeton Review book is about $20 to $28 per subject. Fiveable’s $79 a year covers every subject, which beats per-subject options if you take several exams.
Which AP prep covers every subject?
Fiveable, at $79 a year or $29 a month for all 42 subjects. UWorld, Albert and Princeton Review are priced per subject.
Which AP prep gives free-response feedback?
Fiveable grades free-response answers point by point, and Khan Academy has added free-response support in Precalculus and Calculus AB. Princeton Review books give model answers.
Can I get AP prep free through school?
Possibly. If your school licenses Albert, you can use it at no cost. Ask your AP teacher.