# Did you concentrate? vs MindMatrix

The clearest difference is iOS requirement: Did you concentrate? at 15.0 against MindMatrix's 18.5. On price, ads, in-app purchases and device support 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 | Did you concentrate? | MindMatrix |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 5 days |
| Size | 5 MB | 1 MB |
| Requires iOS | **15.0** | 18.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [SHUNJI KUSAKA](https://appshunter.io/developer/1738810004) | [Sakihara Riki](https://appshunter.io/developer/1814756805) |

## What reviewers say

### Did you concentrate?

[App page](https://appshunter.io/ios/app/did-you-concentrate/id6496853171)

**Features:** macOS Compatibility

**In-app purchases:** none


### MindMatrix

[App page](https://appshunter.io/ios/app/mindmatrix/id6747649464)

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

**In-app purchases:** none


## Frequently asked questions

### Is Did you concentrate? free?

Did you concentrate? is free to download, with no in-app purchases.

### Is MindMatrix free?

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

### Do Did you concentrate? or MindMatrix have ads?

Neither Did you concentrate? nor MindMatrix shows ads.

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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.*