Simple pricing. No surprises.
Start free with 10 questions per day. Upgrade when you're ready to go hard.
improvement
full practice tests
within 2 hours
across 20 subjects
Why adaptive beats everything else
Effectiveness = % of students who improved by 1+ AP score point within one week of focused study. Based on adaptive learning research and early user testing.
- 10 questions per day
- All subjects (SAT + AP)
- Diagnostic test
- Skill mastery dashboard
- AI explanations
- Unlimited practice
- FRQ grading
- Score predictor
- Study plan
- Unlimited questions
- All 20+ AP + SAT subjects
- 7 practice modes
- AI explanations on every question
- FRQ rubric grading
- Personalized study plan
- Ask Pebble AI tutor
- Score predictor
- Everything in Pro
- Billed annually
- Best value for SAT + AP prep
- Cancel anytime
StudyPebble adapts to YOUR weak spots — something generic question banks can't do.
Questions
Yes — 10 questions per day, all subjects, forever. No credit card needed.
Yes — all available released College Board questions are included. Our question bank is based on official practice tests and released exam questions. When those run out, we generate additional questions that copy the exact format, style, and difficulty of real AP exams.
StudyPebble tracks your performance on every skill using an adaptive rating system. When you get something wrong, it remembers. It keeps drilling your weak areas until they're not weak anymore.
SAT Reading & Writing, SAT Math, and 20+ AP subjects including Bio, APUSH, Psych, Calc, Physics, Chem, Gov, and more.
Khan Academy is great for learning concepts but doesn't adapt to YOUR weak spots. Quizlet is just flashcards. StudyPebble combines adaptive practice, 7 different study modes, AI explanations, and FRQ grading — all in one app.
Yes. Cancel in one click from your profile — no fees, no questions asked. Your progress is always saved.
Yes — StudyPebble works on any device with a browser. No app download needed.