# ShapeMemo vs Wiki Quick Study｜アシストシステム

The clearest difference is device support: ShapeMemo 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). 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 | ShapeMemo | Wiki Quick Study｜アシストシステム |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | — |
| Update frequency | Every 8 months | — |
| Size | 5 MB | 25 MB |
| Requires iOS | 18 | **15.6** |
| Devices | **iPhone, iPad** | — |
| Age rating | 4+ | 4+ |
| Developer | [Taiki Sato](https://appshunter.io/developer/1807425583) | [Tsuyoshi Hayakawa](https://appshunter.io/developer/314516929) |

## What reviewers say

### ShapeMemo

[App page](https://appshunter.io/ios/app/shapememo-brain-training-game/id6744379976)

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is ShapeMemo free?

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

### 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.

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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.*