# Codon One vs Khedawy

The clearest difference is rating: Khedawy at 5.0 against Codon One's 4.5. Khedawy also leads on in-app purchases (none vs 7) and iOS requirement (13.0 vs 15.6). Codon One's advantage is ratings volume (25 vs 1) 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. Khedawy asks for nothing beyond the download.

Khedawy 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 1, so its average is the more settled of the two.

Codon One ships an update every 3 weeks, Khedawy every 2 months. The most recent releases landed on October 29, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Codon One | Khedawy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (25 ratings)](https://appshunter.io/ios/app/codon-one-biology-study/id1517313390/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/khedawy/id1576578046/reviews)** |
| Number of ratings | **25** | 1 |
| Positive reviews | 76.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 277 MB | 77 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Daniel Gebert](https://appshunter.io/developer/1517313389) | [mohamed yousef](https://appshunter.io/developer/1552394447) |

## 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 |


### Khedawy

[App page](https://appshunter.io/ios/app/khedawy/id1576578046)

This educational app offers comprehensive and modern explanations for all aspects of secondary school material. It utilizes various teaching methods including videos, PDFs, interactive Q&A, multiple-choice quizzes, and comprehensive reviews to enhance understanding and application.

**Highlights:** Video lessons, PDF explanations, Interactive Q&A, Multiple-choice quizzes, Comprehensive reviews, Lesson schedules and promos

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

**In-app purchases:** none


## Frequently asked questions

### Is Codon One free?

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

### Is Khedawy free?

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

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

Khedawy is rated higher. Codon One averages 4.5 out of 5 from 25 ratings, while Khedawy averages 5.0 from 1 ratings.

### Do Codon One or Khedawy have ads?

Neither Codon One nor Khedawy shows ads.

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

Codon One ships an update every 3 weeks, and Khedawy every 2 months. Most recently, Codon One was updated on October 29, 2026 and Khedawy on October 21, 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.*