# Mental Arithmetic Professional vs Guyton

The clearest difference is in-app purchases: Guyton at none against Mental Arithmetic Professional's 1. Guyton also leads on iOS requirement (15.1 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. Mental Arithmetic Professional sells 1 one-off in-app purchase. Guyton asks for nothing beyond the download.

## The numbers

| Metric | Mental Arithmetic Professional | Guyton |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 12 months | — |
| Size | 11 MB | 24 MB |
| Requires iOS | 26.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Gerhard Lentschik](https://appshunter.io/developer/629988041) | [Pietro Bertini](https://appshunter.io/developer/1769996267) |

## What reviewers say

### Mental Arithmetic Professional

[App page](https://appshunter.io/ios/app/mental-arithmetic-professional/id1477369984)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Turn off advertising | $1.99 | one-time |


### Guyton

[App page](https://appshunter.io/ios/app/guyton/id6749528826)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Mental Arithmetic Professional free?

Mental Arithmetic Professional is free to download, with in-app purchases available.

### Is Guyton free?

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

### Do Mental Arithmetic Professional or Guyton have ads?

Neither Mental Arithmetic Professional nor Guyton 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.*