# The Color Code vs Rectangles & Primes

The clearest difference is update cadence: The Color Code at every 5 days against Rectangles & Primes's every 3 weeks. The Color Code also leads on iOS requirement (6.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

The Color Code ships an update every 5 days, Rectangles & Primes every 3 weeks. The most recent releases landed on September 10, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | The Color Code | Rectangles & Primes |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 3 weeks |
| Size | 47 MB | 10 MB |
| Requires iOS | **6.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jun Nishio](https://appshunter.io/developer/1078551886) | [Johannes Charra](https://appshunter.io/developer/1557733427) |

## What reviewers say

### The Color Code

[App page](https://appshunter.io/ios/app/the-color-code-can-you-answer-hex-color-code/id1191081876)

**Features:** macOS Compatibility

**In-app purchases:** none


### Rectangles & Primes

[App page](https://appshunter.io/ios/app/rectangles-and-primes/id1572074176)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is The Color Code free?

The Color Code is free to download, with no in-app purchases.

### Is Rectangles & Primes free?

Rectangles & Primes is free to download, with no in-app purchases.

### Do The Color Code or Rectangles & Primes have ads?

Neither The Color Code nor Rectangles & Primes shows ads.

### Which is updated more often, The Color Code or Rectangles & Primes?

The Color Code ships an update every 5 days, and Rectangles & Primes every 3 weeks. Most recently, The Color Code was updated on September 10, 2026 and Rectangles & Primes on September 15, 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.*