# Codon One vs AMROX

The clearest difference is price: Codon One at Free against AMROX's $4.99. Codon One also leads on device support (3 vs 1) and iOS requirement (15.6 vs 17.0). AMROX's advantage is in-app purchases (none vs 7) and update cadence (every 3 days vs every 3 weeks). On ads there is nothing between them.

Codon One is free to download; AMROX costs $4.99 up front. Codon One sells 7 one-off in-app purchases. AMROX asks for nothing beyond the download.

Codon One ships an update every 3 weeks, AMROX every 3 days. The most recent releases landed on October 10, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Codon One | AMROX |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | **[4.5 (24 ratings)](https://appshunter.io/ios/app/codon-one-biology-study/id1517313390/reviews)** | — |
| Number of ratings | **24** | — |
| Positive reviews | 76.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 277 MB | 8 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Daniel Gebert](https://appshunter.io/developer/1517313389) | [Yoshikazu Mikawa](https://appshunter.io/developer/1778069380) |

## What reviewers say

### Codon One

[App page](https://appshunter.io/ios/app/codon-one-biology-study/id1517313390)

Master molecular biology, genetics, evolution, and life chemistry through interactive modules and quizzes. Explore essential concepts with clear diagrams and concise explanations. Includes helpful tools for sequence analysis and genetic code reference.

**Highlights:** Interactive learning modules, Quick quizzes for comprehension, Clear diagrams and plain language, Molecule reference guide, Sequence analysis tools, Genetic code exploration

**Features:** Family Sharing, Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Module 1: Chemistry of Life | Free | one-time |
| Module 2: Genetics | $2.99 | one-time |
| Module 3: Evolution | $2.99 | one-time |
| Module 4: Science History | $2.99 | one-time |
| Module 5: Cell Biology | $2.99 | one-time |
| Module 6: Development | $2.99 | one-time |
| Unlock All | $8.99 | one-time |


### AMROX

[App page](https://appshunter.io/ios/app/amrox/id6504174501)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Codon One free?

Codon One is free to download, with in-app purchases available.

### Is AMROX free?

AMROX costs $4.99, with no in-app purchases.

### Do Codon One or AMROX have ads?

Neither Codon One nor AMROX shows ads.

### Which is updated more often, Codon One or AMROX?

Codon One ships an update every 3 weeks, and AMROX every 3 days. Most recently, Codon One was updated on October 10, 2026 and AMROX on September 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*