# SumXMinus vs こちょこちょ

The clearest difference is iOS requirement: こちょこちょ at 12.0 against SumXMinus's 16.0. 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 | SumXMinus | こちょこちょ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | — |
| Update frequency | Every 6 weeks | — |
| Size | 32 MB | 31 MB |
| Requires iOS | 16.0 | **12.0** |
| Devices | **iPhone** | — |
| Age rating | 4+ | 4+ |
| Developer | [Katsuhiko Yao](https://appshunter.io/developer/1543188534) | [Pixel Co., Ltd.](https://appshunter.io/developer/1743924614) |

## What reviewers say

### SumXMinus

[App page](https://appshunter.io/ios/app/sumxminus-negative-math/id6480327347)

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

**In-app purchases:** none


### こちょこちょ

[App page](https://appshunter.io/ios/app/id6503424943)

**In-app purchases:** none


## Frequently asked questions

### Is SumXMinus free?

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

### Is こちょこちょ free?

こちょこちょ 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.*