# 4Colors vs Kakuso Challenge

The clearest difference is price: Kakuso Challenge at Free against 4Colors's $0.99. Kakuso Challenge also leads on update cadence (every 6 months vs every 22 months). 4Colors's advantage is in-app purchases (none vs 3) and ads (none vs shown). On device support and iOS requirement there is nothing between them.

Kakuso Challenge is free to download; 4Colors costs $0.99 up front. Kakuso Challenge sells 3 one-off in-app purchases. 4Colors asks for nothing beyond the download.

4Colors ships an update every 22 months, Kakuso Challenge every 6 months. The most recent releases landed on August 23, 2026 and June 5, 2026 respectively.

## The numbers

| Metric | 4Colors | Kakuso Challenge |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 22 months | **Every 6 months** |
| Size | 12 MB | 17 MB |
| Requires iOS | **12.0** | 13.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Liansheng Zhang](https://appshunter.io/developer/448246392) | [Alven Kam](https://appshunter.io/developer/1227687322) |

## What reviewers say

### 4Colors

[App page](https://appshunter.io/ios/app/4colors/id473562920)

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

**In-app purchases:** none


### Kakuso Challenge

[App page](https://appshunter.io/ios/app/kakuso-challenge/id1485845940)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Kakuso Challenge 20 Hints | $0.99 | one-time |
| Kakuso Challenge 50 Hints | $1.99 | one-time |
| Kakuso Challenge 100 Hints | $2.99 | one-time |


## Frequently asked questions

### Is 4Colors free?

4Colors costs $0.99, with no in-app purchases.

### Is Kakuso Challenge free?

Kakuso Challenge is free to download, with in-app purchases available.

### Do 4Colors or Kakuso Challenge have ads?

Kakuso Challenge shows ads; 4Colors does not.

### Which is updated more often, 4Colors or Kakuso Challenge?

4Colors ships an update every 22 months, and Kakuso Challenge every 6 months. Most recently, 4Colors was updated on August 23, 2026 and Kakuso Challenge on June 5, 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.*