# Add Up 10. vs 補数チャレンジ！

The clearest difference is device support: Add Up 10. at 3 against 補数チャレンジ！'s —. Add Up 10. also leads on iOS requirement (15.0 vs 17.2). On price and in-app purchases 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 | Add Up 10. | 補数チャレンジ！ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | — |
| Update frequency | Every 3 months | — |
| Size | 58 MB | 2 MB |
| Requires iOS | **15.0** | 17.2 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [MASAHIRO MIZUTANI](https://appshunter.io/developer/368158224) | [Kazuhiko Maruyama](https://appshunter.io/developer/1731223811) |

## What reviewers say

### Add Up 10.

[App page](https://appshunter.io/ios/app/add-up-10/id562494612)

**In-app purchases:** none


### 補数チャレンジ！

[App page](https://appshunter.io/ios/app/id6478446057)

**In-app purchases:** none


## Frequently asked questions

### Is Add Up 10. free?

Add Up 10. is free to download, with no in-app purchases.

### Is 補数チャレンジ！ free?

補数チャレンジ！ is free to download, with no in-app purchases.

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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.*