# Amino Acid Quiz

> Learn the Amino Acids

Canonical page: [https://chrome-stats.com/d/id1301129866](https://chrome-stats.com/d/id1301129866)

## Overview

- **ID:** `id1301129866`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Atlas Educational Software
- **Category:** Education
- **Rating:** 4.90 / 5 (963 ratings)
- **Version:** 1.6
- **Last updated:** 2025-11-03
- **First published:** 2017-11-08
- **Size:** 100 MB
- **Data as of:** 2026-09-08
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/amino-acid-quiz/id1301129866)
- **Website:** [https://atlaseducationalsoftware.com](https://atlaseducationalsoftware.com/)
- **Privacy policy:** [https://atlaseducationalsoftware.com/privacy-policy.html](https://atlaseducationalsoftware.com/privacy-policy.html)

## Description

Learn the names, structural formulas, 1-letter codes, 3-letter codes, side-chain classes, and codons for all 20 standard amino acids. The app offers customizable quizzes to test and improve your knowledge.

Six topics are covered: amino acid names, structural formulas, 1-letter and 3-letter codes, codons, and side-chain classes. All topics are free to study, with an in-app purchase to remove banner ads. The game language can be switched in-app to English, French, Spanish, German, Simplified Chinese, Traditional Chinese, Japanese, Korean, Italian, Indonesian, Russian, Portuguese, Swedish, Norwegian, and Dutch.

## Rankings

- #54,538 — Overall

## Review summary

Amino Acid Quiz is a top study tool for memorizing amino acids, prized for its effective learning, engaging interface, and flexible, repeatable practice. It is free with discreet ads and offers an ad-free option. Users appreciate rapid memorization and long-term retention, but point to content gaps (pKa/charge accuracy) and features they'd like added (short-answer mode, more biochemical data).

### Pros

- Highly effective for memorizing amino acids (names, codes, and structures) for MCAT/biochem prep; many users memorize all in a day.
- Engaging, responsive interface that makes studying enjoyable.
- Free to use with limited ads and an option to upgrade to ad-free; ads are discreet.
- Supports spaced repetition over months, aiding long-term retention.
- Flexible question formats and well-designed distractors that challenge recall without obvious wrong choices.

### Cons

- Content accuracy gaps: incorrect charge states and missing pKa data for some amino acids at physiological pH.
- No short-answer or fill-in-the-blank mode; current MCQ format limits active recall and writing in answers.
- Requests for additional biochemical data (e.g., pKa details, hydrophobic/hydrophilic classification) and related content are not yet provided.

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Source: [Chrome-Stats](https://chrome-stats.com/d/id1301129866)