# Amino Acids Trainer > Interactive trainer for learning proteinogenic amino acids with quizzes and progress tracking. (iPhone/iPad app by Alexander Mehanic.) - Source: https://appshunter.io/ios/app/amino-acids-trainer/id6791918556 (this page in markdown: same URL + `.md`) - Developer: [Alexander Mehanic](https://appshunter.io/developer/1888807545) - Category: Education - Price: Free with in-app purchases - Rating: 5.00/5 from 1 App Store ratings - Age rating: 4+ - Requires: iOS 17.6 · 11 MB - Languages: American English, Arabic, Danish, Dutch, French (France), German (Germany), Italian, Japanese, Norwegian Bokmål, Polish and 6 more - Released: 2026-08-05 - Data updated: 2026-09-07 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/amino-acids-trainer/id6791918556/reviews.md ## What is Amino Acids Trainer? Learn the 20 canonical proteinogenic amino acids through interactive and focused training. Study their structures, one-letter and three-letter codes, properties, side chains, molecular formulas and pKa values. Practice with multiple quiz modes: • Structure to name • Name to structure • One-letter code • Three-letter code • Properties and side chains • Molecular formulas and pKa values • Mixed training Choose between Easy, Medium and Hard difficulty. You can also control how carbon atoms are displayed in each chemical structure. Exam Mode gives you mixed questions within a 5, 10 or 15 minute time limit. Detailed statistics show your accuracy, progress, average response time, best streak and exam readiness. Incorrect answers are saved automatically. Review Mode lets you practice your mistakes again, while bookmarks help you save important amino acids for later. Ideal for school, university, biochemistry, medicine, pharmacy and anyone who wants to confidently recognize amino acids. Premium unlocks all advanced quiz modes and difficulty levels. ## Key features - Interactive amino acid training - Structure, code, and property quizzes - Multiple quiz modes - Adjustable difficulty levels - Timed exam mode - Detailed statistics and progress tracking - Review and bookmarking features ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Premium | $3.99 | one-time | ## Frequently asked questions about Amino Acids Trainer ### What are the learning modes in Amino Acids Trainer? Amino Acids Trainer offers multiple quiz modes including structure to name, name to structure, one-letter code, three-letter code, properties and side chains, molecular formulas and pKa values, and mixed training. There is also an Exam Mode for timed practice. ### Can I track my learning progress with Amino Acids Trainer? Yes, Amino Acids Trainer provides detailed statistics that show your accuracy, progress, average response time, best streak, and exam readiness. Incorrect answers are automatically saved for review. ### What is the age rating for Amino Acids Trainer? Amino Acids Trainer has an age rating of 4+, making it suitable for a wide range of users. It is designed for educational purposes. ### How often is Amino Acids Trainer updated? The latest version is 1.0.4, and the app was last updated on September 7, 2026. Updates typically focus on improving features and content. ### What devices support Amino Acids Trainer? Amino Acids Trainer is available for both iPhone and iPad, offering a flexible learning experience across Apple devices. ### Does Amino Acids Trainer offer offline play? The provided description does not specify if Amino Acids Trainer supports offline play. However, its focus on interactive quizzes suggests it may require an internet connection for some features. ### What does the premium version of Amino Acids Trainer unlock? Premium access in Amino Acids Trainer unlocks all advanced quiz modes and difficulty levels, providing a more comprehensive learning experience. ### What is the user sentiment for Amino Acids Trainer? Based on the available data, Amino Acids Trainer has a perfect rating of 5.0 stars from 1 rating, indicating very positive user sentiment. ## Version history (last 3 releases) ### 1.0.4 — 2026-09-07 Learn smarter with a major update: • Personalized learning with Continue Learning, a daily plan, spaced repetition, a Mastery Map, and focused confusion training. • Peptide Academy and Peptide Lab for sequences, peptide bonds, charge and pI, masses, and enzymatic cleavage. • An interactive pH and charge lab, plus a structure builder. • Seven challenge modes, free-text answers, and custom exams. • Amino Acid of the Day, a Home Screen widget, practice reminders, and haptic feedback. • Improved explanations, review, and statistics, with faster startup. Premium practice activities can now be tried three times for free. ### 1.0.3 — 2026-08-11 • A personal, adaptive daily study plan built around your progress, strengths, and weak spots • Targeted exercises for commonly confused amino acids, plus focused review of your mistakes • Peptide Lab with sequence conversion, molecular formulas, average and monoisotopic mass, charge, and pI • New pH, Charge & pI Lab • Interactive Structure Builder and custom exams • Free-text answers and an improved Exam Mode: feedback appears only in the final summary, with mistakes available in Review • Detailed Premium statistics and personalized learning insights • Daily goal reminders and an Amino Acid of the Day widget • Try selected Premium practice tools up to three times for free • Refined haptics and interface improvements • Faster startup and smoother calculations • Improved chemistry content and translations ### 1.0.2 — 2026-08-05 No release notes. ## More apps by Alexander Mehanic - [Organic Chemistry Naming](https://appshunter.io/ios/app/organic-chemistry-naming/id6761313321) - [Inorganic Chemistry Naming](https://appshunter.io/ios/app/inorganic-chemistry-naming/id6796027176) - [Chemical Equations Trainer](https://appshunter.io/ios/app/chemical-equations-trainer/id6797987873) All apps by Alexander Mehanic: https://appshunter.io/developer/1888807545 ## Related topics [amino acids trainer](https://appshunter.io/ios/topics/amino-acids-trainer) · [learn amino acids](https://appshunter.io/ios/topics/learn-amino-acids) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-07.*