# Four Colours vs COMath Premium

The clearest difference is update cadence: COMath Premium at every 2 weeks against Four Colours's every 42 months. COMath Premium also leads on price ($0.99 vs $1.99). Four Colours's advantage is iOS requirement (12.0 vs 15.0). On ads, in-app purchases and device support there is nothing between them.

Four Colours costs $1.99 and COMath Premium $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Four Colours ships an update every 42 months, COMath Premium every 2 weeks. The most recent releases landed on October 8, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Four Colours | COMath Premium |
| --- | --- | --- |
| Price | $1.99 | **$0.99** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/four-colours/id644215345/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 42 months | **Every 2 weeks** |
| Monetization | Paid | — |
| Size | 15 MB | 85 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Roman Koksharov](https://appshunter.io/developer/700716922) | [Jianfeng Wu](https://appshunter.io/developer/1435210283) |

## What reviewers say

### Four Colours

[App page](https://appshunter.io/ios/app/four-colours/id644215345)

Explore the mathematical concept of the four-color theorem with interactive maps of various countries and regions. This educational app allows you to test and understand how any map can be colored using only four colors, ensuring no adjacent areas share the same hue.

**Highlights:** Four-color theorem demonstration, Interactive maps of 12 countries/regions, Geography study tool, Computer-aided science verification, Educational exploration

**Features:** macOS Compatibility

**In-app purchases:** none


### COMath Premium

[App page](https://appshunter.io/ios/app/comath-premium/id6752225245)

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

**In-app purchases:** none


## Frequently asked questions

### Is Four Colours free?

Four Colours costs $1.99, with no in-app purchases.

### Is COMath Premium free?

COMath Premium costs $0.99, with no in-app purchases.

### Do Four Colours or COMath Premium have ads?

Neither Four Colours nor COMath Premium shows ads.

### Which is updated more often, Four Colours or COMath Premium?

Four Colours ships an update every 42 months, and COMath Premium every 2 weeks. Most recently, Four Colours was updated on October 8, 2026 and COMath Premium on October 25, 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.*