About this app
Test and improve your knowledge of the 20 standard amino acids using this app's customizable quizzes. Multiple choice quizzes cover the following 6 topics: - Amino acid names - Structural formulas - 1-Letter codes - 3-Letter codes - Codons - Side chain classes All topics can be studied for free using this app. An in-app purchase is available to remove the banner ad. The game language can easily be changed in-app to English, French, Spanish, German, Simplified Chinese, Traditional Chinese, Japanese, Korean, Italian, Indonesian, Russian, Portuguese, Swedish, Norwegian, and Dutch.
Latest release
What’s New
Optimizations for the latest versions of iOS.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
- First observed Oct 4, 2026 · 5:13 PM Free
Screenshots
