		DownloadsSep 2026	RevenueSep 2026	Top product
United States	988	24.8%	24.8%	1stAnnual · 7 days trialPremium Yearly$59.99
France	378	24.8%	24.8%	1stMonthlyPro Monthly$9.99
Germany	217	24.8%	24.8%	3rdWeekly · 3 days trialUnlimited Weekly$4.99
Canada	152	24.8%	24.8%	1stOne-time purchaseLifetime Unlock$29.99
Japan	67	24.8%	24.8%	2nd6 monthsPlus 6 Months$34.99
Taiwan	42	24.8%	24.8%	4thOne-time purchaseStarter Pack$2.99
Spain	37	24.8%	24.8%	1stAnnual · 14 days trialFamily Annual$119.99
Belgium	31	24.8%	24.8%	2nd3 monthsPro Quarterly$24.99
Italy	31	24.8%	24.8%	1stOne-time purchaseRemove Ads$6.99
Switzerland	26	24.8%	24.8%	1stMonthly · 7 days trialPremium Monthly$12.99
United Kingdom	25	24.8%	24.8%	1stAnnual · 7 days trialPremium Yearly$59.99
Mexico	25	24.8%	24.8%	1stMonthlyPro Monthly$9.99
Russia	25	24.8%	24.8%	3rdWeekly · 3 days trialUnlimited Weekly$4.99

Description

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.

Last collected from the App Store on 2 Oct 2026