# Number Cross vs Concentration

The clearest difference is in-app purchases: Number Cross at none against Concentration's 6. Concentration's advantage is iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Concentration sells 6 one-off in-app purchases. Number Cross asks for nothing beyond the download.

## The numbers

| Metric | Number Cross | Concentration |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Weekly | — |
| Size | 116 MB | 38 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TuTu Fun Games Inc.](https://appshunter.io/developer/1782372681) | [giscard mboumeden ngandeu](https://appshunter.io/developer/1896494399) |

## What reviewers say

### Number Cross

[App page](https://appshunter.io/ios/app/number-cross-numbers-games/id6738794848)

**Features:** macOS Compatibility

**In-app purchases:** none


### Concentration

[App page](https://appshunter.io/ios/app/concentration-brain-training/id6774982603)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads Forever | $0.99 | one-time |
| First Purchase | $0.99 | one-time |
| Starter Bundle | $1.99 | one-time |
| 800 Coins | $2.99 | one-time |
| 2,000 Coins | $6.99 | one-time |
| 5,000 Coins | $14.99 | one-time |


## Frequently asked questions

### Is Number Cross free?

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

### Is Concentration free?

Concentration is free to download, with in-app purchases available.

### Do Number Cross or Concentration have ads?

Both Number Cross and Concentration 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.*