# Challenge Puzzle Square vs TwoFourSix

The clearest difference is iOS requirement: TwoFourSix at 15.0 against Challenge Puzzle Square's 18.5. 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 numbers

| Metric | Challenge Puzzle Square | TwoFourSix |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 5 days |
| Size | 0 MB | 4 MB |
| Requires iOS | 18.5 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [PETER JAMES SIDES](https://appshunter.io/developer/1619752154) | [Viacheslav Loktik](https://appshunter.io/developer/1865191984) |

## What reviewers say

### Challenge Puzzle Square

[App page](https://appshunter.io/ios/app/challenge-puzzle-square/id6753913745)

**Features:** macOS Compatibility

**In-app purchases:** none


### TwoFourSix

[App page](https://appshunter.io/ios/app/twofoursix/id6757194024)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Challenge Puzzle Square free?

Challenge Puzzle Square is free to download, with no in-app purchases.

### Is TwoFourSix free?

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

### Do Challenge Puzzle Square or TwoFourSix have ads?

Neither Challenge Puzzle Square nor TwoFourSix shows ads.

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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.*