# Number Memory vs Reaction Grid Reflex

The clearest difference is in-app purchases: Number Memory at none against Reaction Grid Reflex's 2. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Reaction Grid Reflex sells 2 in-app purchases, starting at $1.99 per month. Number Memory asks for nothing beyond the download.

## The numbers

| Metric | Number Memory | Reaction Grid Reflex |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Weekly | — |
| Size | 27 MB | 36 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Iclal KABATAS](https://appshunter.io/developer/1896019931) | [Muhammed Furkan KUCUK](https://appshunter.io/developer/6784363020) |

## What reviewers say

### Number Memory

[App page](https://appshunter.io/ios/app/number-memory-brain-age-test/id6770123794)

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

**In-app purchases:** none


### Reaction Grid Reflex

[App page](https://appshunter.io/ios/app/reaction-grid-reflex/id6790916415)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium (Monthly) | $1.99 | per month |
| Premium (Yearly) | $19.99 | per year |


## Frequently asked questions

### Is Number Memory free?

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

### Is Reaction Grid Reflex free?

Reaction Grid Reflex is free to download, with in-app purchases available.

### Do Number Memory or Reaction Grid Reflex have ads?

Both Number Memory and Reaction Grid Reflex show 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.*