# Codon One vs O Level Physics Quiz

The clearest difference is rating: O Level Physics Quiz at 5.0 against Codon One's 4.5. O Level Physics Quiz also leads on iOS requirement (12.0 vs 15.6). Codon One's advantage is ads (none vs shown) and ratings volume (25 vs 3). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. Codon One sells 7 one-off in-app purchases and O Level Physics Quiz sells 7 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

O Level Physics Quiz holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Codon One has 25 ratings behind it against 3, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly every 3 weeks. Both last shipped on November 3, 2026.

## The numbers

| Metric | Codon One | O Level Physics Quiz |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (25 ratings)](https://appshunter.io/ios/app/codon-one-biology-study/id1517313390/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/o-level-physics-quiz/id1581783282/reviews)** |
| Number of ratings | **25** | 3 |
| Positive reviews | 76.5% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 277 MB | 68 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Daniel Gebert](https://appshunter.io/developer/1517313389) | [Arshad Iqbal](https://appshunter.io/developer/1547001151) |

## 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 |


### O Level Physics Quiz

[App page](https://appshunter.io/ios/app/o-level-physics-quiz/id1581783282)

Practice over 900 GCSE physics multiple-choice questions with this comprehensive quiz app. It offers self-assessment tests, revision notes, and covers a wide range of O Level physics topics for online homeschooling and exam preparation.

**Highlights:** 900+ MCQs, Self-assessment tests, Revision notes, Covers 24 physics chapters, Online homeschooling support, Free download

**Features:** macOS Compatibility

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month Package | $4.99 | per month |
| 3 Months Package | $9.99 | per 3 months |
| 6 Months Package | $14.99 | per 6 months |
| 1 Year Package | $19.99 | per year |
| 1500 Coins | $0.99 | one-time |
| 3500 Coins | $1.99 | one-time |
| 6000 Coins | $2.99 | one-time |


## Frequently asked questions

### Is Codon One free?

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

### Is O Level Physics Quiz free?

O Level Physics Quiz is free to download, with in-app purchases available.

### Which has better reviews, Codon One or O Level Physics Quiz?

O Level Physics Quiz is rated higher. Codon One averages 4.5 out of 5 from 25 ratings, while O Level Physics Quiz averages 5.0 from 3 ratings.

### Do Codon One or O Level Physics Quiz have ads?

O Level Physics Quiz shows ads; Codon One does not.

### Which is updated more often, Codon One or O Level Physics Quiz?

Codon One ships an update every 3 weeks, and O Level Physics Quiz every 3 weeks. Most recently, Codon One was updated on November 3, 2026 and O Level Physics Quiz on November 3, 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.*