# Memory Space vs どれだ？道路標識

The clearest difference is iOS requirement: どれだ？道路標識 at 14.0 against Memory Space'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 | Memory Space | どれだ？道路標識 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | — |
| Update frequency | Every 95 months | — |
| Size | 4 MB | 139 MB |
| Requires iOS | 16.0 | **14.0** |
| Devices | **iPhone** | — |
| Age rating | 4+ | 17+ |
| Developer | [JunJie Yang](https://appshunter.io/developer/1442087099) | [ZERONE](https://appshunter.io/developer/1708775781) |

## What reviewers say

### Memory Space

[App page](https://appshunter.io/ios/app/memory-space-memory-challenge/id1442087100)

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

**In-app purchases:** none


### どれだ？道路標識

[App page](https://appshunter.io/ios/app/id6745122506)

**In-app purchases:** none


## Frequently asked questions

### Is Memory Space free?

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

### Is どれだ？道路標識 free?

どれだ？道路標識 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.*