# 8x7 Kevin vs Math Brainstorm

The clearest difference is device support: 8x7 Kevin at 3 against Math Brainstorm's 1. 8x7 Kevin also leads on iOS requirement (12.0 vs 16.4). On price, ads 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 | 8x7 Kevin | Math Brainstorm |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Size | 9 MB | 19 MB |
| Requires iOS | **12.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Marie Berlioz](https://appshunter.io/developer/1429810527) | [Uladzislau Hreben](https://appshunter.io/developer/1630520742) |

## What reviewers say

### 8x7 Kevin

[App page](https://appshunter.io/ios/app/8x7-kevin/id1455724836)

**Features:** macOS Compatibility

**In-app purchases:** none


### Math Brainstorm

[App page](https://appshunter.io/ios/app/math-brainstorm/id6466660379)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 8x7 Kevin free?

8x7 Kevin is free to download, with no in-app purchases.

### Is Math Brainstorm free?

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

### Do 8x7 Kevin or Math Brainstorm have ads?

Neither 8x7 Kevin nor Math Brainstorm shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*