# Codon One vs Interactive Equation Balancer

The clearest difference is update cadence: Codon One at every 3 weeks against Interactive Equation Balancer's every 13 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Codon One sells 7 one-off in-app purchases and Interactive Equation Balancer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Codon One ships an update every 3 weeks, Interactive Equation Balancer every 13 months. The most recent releases landed on October 10, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Codon One | Interactive Equation Balancer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (24 ratings)](https://appshunter.io/ios/app/codon-one-biology-study/id1517313390/reviews)** | — |
| Number of ratings | **24** | — |
| Positive reviews | 76.5% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 13 months |
| Monetization | Free with in-app purchases | — |
| Size | 277 MB | 1 MB |
| Requires iOS | 15.6 | **14.4** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Daniel Gebert](https://appshunter.io/developer/1517313389) | [Prelucent Limited](https://appshunter.io/developer/1558893493) |

## 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 |


### Interactive Equation Balancer

[App page](https://appshunter.io/ios/app/interactive-equation-balancer/id1573949401)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Enable User Defined Equations | $1.99 | one-time |


## Frequently asked questions

### Is Codon One free?

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

### Is Interactive Equation Balancer free?

Interactive Equation Balancer is free to download, with in-app purchases available.

### Do Codon One or Interactive Equation Balancer have ads?

Neither Codon One nor Interactive Equation Balancer shows ads.

### Which is updated more often, Codon One or Interactive Equation Balancer?

Codon One ships an update every 3 weeks, and Interactive Equation Balancer every 13 months. Most recently, Codon One was updated on October 10, 2026 and Interactive Equation Balancer on October 1, 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.*