# Anatomix vs Codon One

Anatomix and Codon One both sit at 4.4 stars, but that hides the real split: 76% of Codon One's written reviews are positive against 50% of Anatomix's. Codon One also leads on update cadence (every 3 weeks vs every 2 months). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Anatomix sells 10 one-off in-app purchases and Codon One sells 7 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.4 for Anatomix against 4.5 for Codon One. Both are backed by a comparable volume of ratings — 30 and 25 respectively. Written reviews are what separate them: 50% of Anatomix's written reviews are positive against 76% of Codon One's.

Anatomix ships an update every 2 months, Codon One every 3 weeks. The most recent releases landed on October 21, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Anatomix | Codon One |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (30 ratings)](https://appshunter.io/ios/app/anatomix-human-body-systems/id1479205230/reviews) | **[4.5 (25 ratings)](https://appshunter.io/ios/app/codon-one-biology-study/id1517313390/reviews)** |
| Number of ratings | **30** | 25 |
| Positive reviews | 50.0% of reviews | **76.5% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 117 MB | 277 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sierra Chica Software SL](https://appshunter.io/developer/492684294) | [Daniel Gebert](https://appshunter.io/developer/1517313389) |

## What reviewers say

### Anatomix

[App page](https://appshunter.io/ios/app/anatomix-human-body-systems/id1479205230)

Explore and learn the human body's systems through interactive quizzes. Designed for children to learn anatomy playfully, it covers all major systems and offers voiceover support for non-readers. Unlock complete content with a one-time payment for lifetime access.

**Highlights:** Learn human body systems, Interactive quizzes, Identify bones and muscles, Explore circulatory system, Voiceover for non-readers, Covers 11 body systems

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Respiratory System | $1.99 | one-time |
| Skeletal System | $1.99 | one-time |
| Muscular System | $1.99 | one-time |
| Digestive System | $1.99 | one-time |
| Urinary System | $1.99 | one-time |
| Circulatory System | $1.99 | one-time |
| Nervous System | $1.99 | one-time |
| Endocrine System | $1.99 | one-time |
| Reproductive System | $1.99 | one-time |
| Complete Collection | $12.99 | one-time |


### 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 2: Genetics | Free | one-time |
| Module 1: Chemistry of Life | Free | 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 |


## Frequently asked questions

### Is Anatomix free?

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

### Is Codon One free?

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

### Which has better reviews, Anatomix or Codon One?

Codon One is rated higher. Anatomix averages 4.4 out of 5 from 30 ratings, while Codon One averages 4.5 from 25 ratings.

### Do Anatomix or Codon One have ads?

Neither Anatomix nor Codon One shows ads.

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

Anatomix ships an update every 2 months, and Codon One every 3 weeks. Most recently, Anatomix was updated on October 21, 2026 and Codon One on October 29, 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.*