# Codon One vs Codon

The clearest difference is rating: Codon at 5.0 against Codon One's 4.5. Codon One's advantage is ratings volume (24 vs 1) and iOS requirement (15.6 vs 17.0). 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 Codon sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Codon holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Codon One has 24 ratings behind it against 1, so its average is the more settled of the two.

Codon One ships an update every 3 weeks, Codon monthly. Both last shipped on October 24, 2026.

## The numbers

| Metric | Codon One | Codon |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (24 ratings)](https://appshunter.io/ios/app/codon-one-biology-study/id1517313390/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/codon-learn-biology/id6796637767/reviews)** |
| Number of ratings | **24** | 1 |
| Positive reviews | 76.5% 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 | 277 MB | 6 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Daniel Gebert](https://appshunter.io/developer/1517313389) | [OMAR DANIEL GRAZIANO](https://appshunter.io/developer/1896485759) |

## 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 |


### Codon

[App page](https://appshunter.io/ios/app/codon-learn-biology/id6796637767)

Master biology from molecules to ecosystems with a comprehensive, offline curriculum. Explore 100 lessons, researcher profiles, and landmark experiments. Learn mechanisms and track progress with spaced repetition and interactive quizzes.

**Highlights:** Offline biology curriculum, 100 lessons with narration, Researcher profiles, Interactive quizzes with explanations, Spaced repetition learning, Offline access, no account needed, Home screen widgets

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Codon Full Access | $9.99 | one-time |


## Frequently asked questions

### Is Codon One free?

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

### Is Codon free?

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

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

Codon is rated higher. Codon One averages 4.5 out of 5 from 24 ratings, while Codon averages 5.0 from 1 ratings.

### Do Codon One or Codon have ads?

Neither Codon One nor Codon shows ads.

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

Codon One ships an update every 3 weeks, and Codon monthly. Most recently, Codon One was updated on October 24, 2026 and Codon on October 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.*