# Split vs Codon One

The clearest difference is in-app purchases: Split at none against Codon One's 7. Split also leads on iOS requirement (12.0 vs 15.6). Codon One's advantage is update cadence (every 3 weeks vs every 4 months) and rating (4.4 vs 4.2). On price, ads and device support there is nothing between them.

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

Codon One holds the better App Store score, 4.4 against 4.2. Both are backed by a comparable volume of ratings — 5 and 23 respectively.

Split ships an update every 4 months, Codon One every 3 weeks. The most recent releases landed on August 25, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Split | Codon One |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (5 ratings)](https://appshunter.io/ios/app/split-a-cell/id1088701217/reviews) | **[4.4 (23 ratings)](https://appshunter.io/ios/app/codon-one-biology-study/id1517313390/reviews)** |
| Number of ratings | 5 | **23** |
| Positive reviews | — | 76.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 70 MB | 252 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [arludo Pty Ltd](https://appshunter.io/developer/1023251086) | [Daniel Gebert](https://appshunter.io/developer/1517313389) |

## What reviewers say

### Split

[App page](https://appshunter.io/ios/app/split-a-cell/id1088701217)

Engage in a matching game to learn the stages of mitosis and cell division. This educational tool helps users understand chromosome positioning and genetic information transfer during cell division. It's designed for individuals to connect cell stages with chromosome placement.

**Highlights:** Learn mitosis stages, Understand cell division, Matching game gameplay, Chromosome positioning, Genetic information transfer, Reinforce classroom concepts

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

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Split free?

Split is free to download, with no in-app purchases.

### Is Codon One free?

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

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

Codon One is rated higher. Split averages 4.2 out of 5 from 5 ratings, while Codon One averages 4.4 from 23 ratings.

### Do Split or Codon One have ads?

Neither Split nor Codon One shows ads.

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

Split ships an update every 4 months, and Codon One every 3 weeks. Most recently, Split was updated on August 25, 2026 and Codon One 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.*