Dolphin vs AP Prep

Build a steady SAT and ACT study habit with Dolphin. Practice in a swipeable feed, work through explanations, and return to the questions and skills that need more attention. PRACTICE A LITTLE EVERY DAY Answer Math, Reading, English, and Science questions, review vocabulary, and set a daily learning goal. UNDERSTAND YOUR ANSWERS Use worked explanations, video solutions where available, and Pip the Tutor to explore a problem. Save questions and revisit mistakes as you study. MAKE ROOM TO FOCUS With your permission, Focus Mode uses Apple's Screen Time controls to block apps you choose on your selected schedule. Complete your lesson goal to unlock them, or take a break when you need one. KEEP YOUR MOMENTUM Track your streak and progress, and add Dolphin widgets to keep your learning goal close by. Dolphin offers optional in-app subscriptions. Features and content availability may vary. SAT is a trademark of the College Board, and ACT is a trademark of ACT, Inc. Dolphin is not affiliated with or endorsed by either organization.

Turn AP® Biology practice into real score gains. Every multiple-choice question comes with a full explanation, every free-response answer is graded point-by-point against its rubric, and a live 1–5 estimate shows where you stand — updated as you practice. WHY IT WORKS • FRQ grading, point by point — type your free response and see exactly which rubric points you earned and which you missed, with a model answer for each part. • Real explanations on every MCQ — why the right answer is right, why each distractor is wrong, the common trap, an exam tip, and a memory hook. • A 1–5 estimate you can trust — your accuracy is weighted by each unit's share of the real exam. It's a practice estimate, not an official score. • Timed mock exams — full or quick, both sections, scored 1–5 like test day, with a point-by-point review. • A mistake book that works — every question you miss lands here on its own; re-do it and it clears when you get it right. WHAT'S INSIDE • MCQ practice by unit and topic, with a question map and a four-function calculator • Free-response practice with rubric-by-rubric grading and "practice the missed point" drills • Full and quick mock exams with section timing and a 1–5 result • Mistake book with per-question review • My AP — set each subject's exam date and target, and track your estimate FREE & PRO Start free, no account needed. Free includes 10 MCQ, 1 graded FRQ, 1 mock exam, and 10 mistake reviews a day, plus your 1–5 estimate and mistake book. Pro removes the daily caps: unlimited MCQ, unlimited FRQ grading, unlimited mocks, unlimited mistake reviews, and full mock explanations. SUBJECTS AP Biology now — more AP subjects on the way. One subscription covers them all. SUBSCRIPTION AP Prep Pro is an auto-renewable subscription. • Monthly — $9.90 • 3 Months — $19.90 • Lifetime — $39.90 (one-time, not a subscription) • Payment is charged to your Apple Account at confirmation of purchase. • A subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period; your account is charged within 24 hours before renewal. • Manage or cancel anytime in Settings › Apple Account › Subscriptions. Terms of Use: https://www.prepscore.ai/terms Privacy Policy: https://www.prepscore.ai/privacy AP is a trademark registered by the College Board, which is not affiliated with, and does not endorse, this app. Score estimates are for practice and are not official AP scores.