# Wiki Quick Study｜アシストシステム vs 指数・対数フラッシュ暗算

The clearest difference is device support: 指数・対数フラッシュ暗算 at 2 against Wiki Quick Study｜アシストシステム's —. Wiki Quick Study｜アシストシステム's advantage is iOS requirement (15.6 vs 18.6). 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 | Wiki Quick Study｜アシストシステム | 指数・対数フラッシュ暗算 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | — | Yes |
| Update frequency | — | Weekly |
| Size | 25 MB | 4 MB |
| Requires iOS | **15.6** | 18.6 |
| Devices | — | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Tsuyoshi Hayakawa](https://appshunter.io/developer/314516929) | [masahiko akita](https://appshunter.io/developer/1891674153) |

## What reviewers say

### Wiki Quick Study｜アシストシステム

[App page](https://appshunter.io/ios/app/wiki-quick-study/id6755429456)

**In-app purchases:** none


### 指数・対数フラッシュ暗算

[App page](https://appshunter.io/ios/app/id6770951661)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Wiki Quick Study｜アシストシステム free?

Wiki Quick Study｜アシストシステム is free to download, with no in-app purchases.

### Is 指数・対数フラッシュ暗算 free?

指数・対数フラッシュ暗算 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.*