# Codon One vs Embryonic Virtual Heart

The clearest difference is in-app purchases: Embryonic Virtual Heart at none against Codon One's 7. Codon One's advantage is update cadence (every 3 weeks vs every 53 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Codon One sells 7 one-off in-app purchases. Embryonic Virtual Heart asks for nothing beyond the download.

Codon One ships an update every 3 weeks, Embryonic Virtual Heart every 53 months. The most recent releases landed on October 29, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Codon One | Embryonic Virtual Heart |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (25 ratings)](https://appshunter.io/ios/app/codon-one-biology-study/id1517313390/reviews)** | — |
| Number of ratings | **25** | — |
| Positive reviews | 76.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | — |
| Update frequency | **Every 3 weeks** | Every 53 months |
| Monetization | Free with in-app purchases | — |
| Size | 277 MB | 259 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Daniel Gebert](https://appshunter.io/developer/1517313389) | [Nicholas Gustilo](https://appshunter.io/developer/1589608431) |

## 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 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 |


### Embryonic Virtual Heart

[App page](https://appshunter.io/ios/app/embryonic-virtual-heart/id1589608429)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Codon One free?

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

### Is Embryonic Virtual Heart free?

Embryonic Virtual Heart is free to download, with no in-app purchases.

### Which is updated more often, Codon One or Embryonic Virtual Heart?

Codon One ships an update every 3 weeks, and Embryonic Virtual Heart every 53 months. Most recently, Codon One was updated on October 29, 2026 and Embryonic Virtual Heart on October 27, 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.*