# Codon One vs CellWalk

The clearest difference is rating: CellWalk at 4.9 against Codon One's 4.4. CellWalk also leads on review sentiment (92% vs 76%) and ratings volume (70 vs 23). Codon One's advantage is iOS requirement (15.6 vs 27.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Codon One sells 7 one-off in-app purchases and CellWalk sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

CellWalk holds the better App Store score, 4.9 against 4.4. Both are backed by a comparable volume of ratings — 23 and 70 respectively. Written reviews point the same way: 76% of Codon One's written reviews are positive against 92% of CellWalk's.

Codon One ships an update every 3 weeks, CellWalk monthly. The most recent releases landed on September 8, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Codon One | CellWalk |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (23 ratings)](https://appshunter.io/ios/app/codon-one-biology-study/id1517313390/reviews) | **[4.9 (70 ratings)](https://appshunter.io/ios/app/cellwalk/id1627776848/reviews)** |
| Number of ratings | 23 | **70** |
| Positive reviews | 76.5% of reviews | **91.7% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 252 MB | 505 MB |
| Requires iOS | **15.6** | 27.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, Mac, Vision Pro** |
| Age rating | 4+ | 12+ |
| Developer | [Daniel Gebert](https://appshunter.io/developer/1517313389) | [Ako Biotica Inc.](https://appshunter.io/developer/1895703608) |

## 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 |


### CellWalk

[App page](https://appshunter.io/ios/app/cellwalk/id1627776848)

Explore the intricate world of cells in a 3D environment, from the overall structure down to molecular details. Tap on terms to receive clear, contextual explanations powered by on-device AI, adapting to your learning level. Designed for students and educators to foster a deeper understanding of cell biology.

**Highlights:** 3D cell exploration, On-device AI definitions, Multi-level explanations, Interactive concept chains, Touch-first navigation, High-fidelity visuals

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Lessons | $14.99 | one-time |

**What reviewers like**

- ✨ Stunning visualizations
- 🔬 Incredible detail
- 🧠 Informative content
- 👍 Easy to use
- 🚀 Smooth performance

**What reviewers complain about**

- ⚠️ Misleading information
- 📚 Limited content
- 🖼️ Tiny window view
- 😵 Nauseating renderer
- 🐛 Buggy performance

**Reported bugs**

- ATP synthase described backwards
- Renderer noise causes nausea
- Buggy and low framerate
- Renderer not responsive to head movements

**Requested features**

- More cells to explore (eukaryotic, mammalian, computer cells)
- More content and depth
- Expand on descriptions with an 'expand on' feature
- Add tutorials for new users
- Add color to highlighted text for easy reference


## Frequently asked questions

### Is Codon One free?

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

### Is CellWalk free?

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

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

CellWalk is rated higher. Codon One averages 4.4 out of 5 from 23 ratings, while CellWalk averages 4.9 from 70 ratings.

### Do Codon One or CellWalk have ads?

Neither Codon One nor CellWalk shows ads.

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

Codon One ships an update every 3 weeks, and CellWalk monthly. Most recently, Codon One was updated on September 8, 2026 and CellWalk on September 26, 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.*