# Protein Purification for iPhone vs Codon One

The clearest difference is in-app purchases: Protein Purification for iPhone at none against Codon One's 7. Protein Purification for iPhone also leads on iOS requirement (7.1 vs 15.6). Codon One's advantage is rating (4.5 vs 4.3) and update cadence (every 3 weeks vs every 2 months). 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. Protein Purification for iPhone asks for nothing beyond the download.

Codon One holds the better App Store score, 4.5 against 4.3. That said, the two scores are not equally well evidenced: Codon One has 25 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 67% of Protein Purification for iPhone's written reviews are positive against 76% of Codon One's.

Protein Purification for iPhone ships an update every 2 months, Codon One every 3 weeks. The most recent releases landed on October 23, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Protein Purification for iPhone | Codon One |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (4 ratings)](https://appshunter.io/ios/app/protein-purification-for-iphone/id558471583/reviews) | **[4.5 (25 ratings)](https://appshunter.io/ios/app/codon-one-biology-study/id1517313390/reviews)** |
| Number of ratings | 4 | **25** |
| Positive reviews | 66.7% of reviews | **76.5% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 16 MB | 277 MB |
| Requires iOS | **7.1** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Simon Booth](https://appshunter.io/developer/1146275430) | [Daniel Gebert](https://appshunter.io/developer/1517313389) |

## What reviewers say

### Protein Purification for iPhone

[App page](https://appshunter.io/ios/app/protein-purification-for-iphone/id558471583)

This educational app simulates protein separation techniques, allowing users to experiment with different purification protocols. It models common chromatography methods and helps users learn which techniques are most effective for various protein mixtures.

**Highlights:** Protein separation technique simulation, Gel filtration and ion-exchange chromatography, Design and test purification protocols, Experiment with complex protein mixtures, Models success and failure scenarios

**Features:** macOS Compatibility

**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 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 Protein Purification for iPhone free?

Protein Purification for iPhone 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, Protein Purification for iPhone or Codon One?

Codon One is rated higher. Protein Purification for iPhone averages 4.3 out of 5 from 4 ratings, while Codon One averages 4.5 from 25 ratings.

### Do Protein Purification for iPhone or Codon One have ads?

Neither Protein Purification for iPhone nor Codon One shows ads.

### Which is updated more often, Protein Purification for iPhone or Codon One?

Protein Purification for iPhone ships an update every 2 months, and Codon One every 3 weeks. Most recently, Protein Purification for iPhone was updated on October 23, 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.*