# Keep It Centered vs ≒10

The clearest difference is ads: Keep It Centered at none against ≒10's shown. ≒10's advantage is iOS requirement (13.0 vs 15.1). On price, 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 | Keep It Centered | ≒10 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | — | Weekly |
| Size | 31 MB | 6 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Zachary Moore](https://appshunter.io/developer/949833034) | [YUICHI NAKATANI](https://appshunter.io/developer/476800955) |

## What reviewers say

### Keep It Centered

[App page](https://appshunter.io/ios/app/keep-it-centered/id6756808170)

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

**In-app purchases:** none


### ≒10

[App page](https://appshunter.io/ios/app/10-mental-math-puzzle/id6783655067)

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

**In-app purchases:** none


## Frequently asked questions

### Is Keep It Centered free?

Keep It Centered is free to download, with no in-app purchases.

### Is ≒10 free?

≒10 is free to download, with no in-app purchases.

### Do Keep It Centered or ≒10 have ads?

≒10 shows ads; Keep It Centered does not.

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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.*