Chemistutor vs OnePrep
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Chemistutor
Master AP Chemistry with this comprehensive study tool. It offers readings, diagrams, and example problems aligned with the AP curriculum. Learn anytime, anywhere, without distractions, to achieve success in a challenging course.
- AP Chemistry curriculum coverage
- 100+ concise lessons
- Readings, diagrams, and example problems
- No ads or in-app purchases
- Learn anytime, anywhere
- iPhone and iPad compatible
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Your guide to a FIVE! AP Chemistry is a difficult, fast paced course. Alleviate your stress and find success through Chemistutor’s readings, diagrams, example problems, and more. This app is specifically tailored to the AP Chemistry curriculum, specifically addressing topics taught in the course. What’s more, you can do it ANYTIME, ANYWHERE! For students, by students: the creators of this app got 5s on the AP Chemistry Exam. NO DISTRACTIONS - No ads - No paywalls - No in-app purchases - No subscriptions COVERS ENTIRE AP CHEM CURRICULUM - 15 units - Fundamentals - Atomic Structure - Electron Configuration - Periodic Trends - Thermochemistry - Lewis Structure - Chemical Bonding - Gas Laws - Solids & Liquids - Solutions - Chemical Kinetics - Chemical Equilibrium - Acids & Bases - Thermodynamics - Electrochemistry LEARN ON THE GO - Any time, anywhere - Compatible on iPhone & iPad - Learn in the car, on the train, etc. 100+ CONCISE AND INFORMATIVE LESSONS - Lessons specifically target concepts used in AP Chem - Readings - Diagrams - Example problems
OnePrep
Prepare for the SAT with a comprehensive study tool. Access thousands of practice questions, realistic mock exams, and AI-powered feedback. Get personalized guidance from an AI tutor to identify and improve weak areas for your dream score.
- Thousands of SAT-style practice questions
- Realistic timed mock exams
- Instant AI feedback and grading
- Personalized study guidance
- Progress tracking
- Cross-device compatibility
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All your SAT® prep in one place. OnePrep is the ultimate study companion for SAT® students. Practice with thousands of SAT-style questions, realistic mock exams, and AI-powered feedback designed to match the official SAT® format. Meet Prepy AI, your personal tutor. Get instant help with difficult questions, clear explanations, and personalized study guidance anytime. Key features Thousands of SAT-style practice questions with step-by-step explanations Realistic timed mock exams Instant AI feedback and grading Progress tracking to identify weak areas Study anywhere, anytime—OnePrep works seamlessly across all your devices. Join 250k+ students worldwide already improving their SAT® scores with OnePrep. Start studying today for free. Questions? contact@oneprep.xyz Terms of Use (EULA): https://www.oneprep.xyz/terms-of-service
Screenshots
Verdict
The clearest difference is rating: OnePrep at 4.7 against Chemistutor's 4.0. OnePrep also leads on update cadence (every 5 days vs every 12 months) and ratings volume (378 vs 27). Chemistutor's advantage is in-app purchases (none vs 23) and ads (none vs shown). On price and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. OnePrep sells 23 in-app purchases, starting at $28.49 per 7 days. Chemistutor asks for nothing beyond the download.
OnePrep holds the better App Store score, 4.7 against 4.0. That said, the two scores are not equally well evidenced: OnePrep has 378 ratings behind it against 27, so its average is the more settled of the two. Written reviews complicate that: 76% of Chemistutor's written reviews are positive against 45% of OnePrep's, so the app with the better star average is not the one people write more warmly about.
Chemistutor ships an update every 12 months, OnePrep every 5 days. The most recent releases landed on October 13, 2026 and October 17, 2026 respectively.
| Parameter | Chemistutor | OnePrep |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (27 ratings) | 4.7 (378 ratings) — better |
| Positive reviews | 76.2% of reviews — better | 45.0% of reviews |
| Number of ratings | 27 | 378 — better |
| Update frequency | Every 12 months | Every 5 days — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 25 MB | 88 MB |
| Age rating | 4+ | 4+ |
| Developer | Jonathan Davis Miller | MyDojo Inc. |
Customer experience
Chemistutor
OnePrep
In-app purchases
Chemistutor
No in-app purchases
OnePrep
- OnePrep Pro (1 Week)$28.497 Days
- OnePrep Plus (1 month)$89.991 Month
- OnePrep Pro (1 Month)$99.991 Month
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- OnePrep Pro – Monthly3 Days trial$99.991 Month
- OnePrep Plus (3 months)$239.003 Months
- OnePrep Pro (3 Months)$269.003 Months
- OnePrep Pro – 3 Months3 Days trial$269.003 Months
- OnePrep Plus (6 months)$354.996 Months
- OnePrep Pro (6 Months)$414.996 Months
- OnePrep Pro – 6 Months3 Days trial$414.996 Months
- OnePrep Plus (1 year)$469.001 Year
- OnePrep Pro (1 Year)$589.001 Year
- OnePrep Pro – Yearly3 Days trial$589.001 Year
- OnePrep Plus Exam Pass (8-14 Days)$80.00
- OnePrep Pro Exam Pass (0-7 Days)$89.00
- OnePrep Pro Exam Pass (8-14 Days)$90.00
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- OnePrep Pro Exam Pass (15-28 Days)$95.00
- OnePrep Pro Exam Pass (29-30 Days)$99.00
- OnePrep Pro Exam Pass (31-44 Days)$134.99
- OnePrep Pro Exam Pass (45-58 Days)$174.99
- OnePrep Pro Exam Pass (59-72 Days)$209.99
- OnePrep Plus Exam Pass (8-10 Mos)$429.00
- OnePrep Plus Exam Pass (10+ Months)$464.99
