# Mental Math Exercises vs Cleanote

The clearest difference is price: Cleanote at Free against Mental Math Exercises's $0.29. Cleanote also leads on update cadence (every 10 days vs every 2 months) and iOS requirement (15.1 vs 17.6). Mental Math Exercises's advantage is in-app purchases (none vs 2). On ads and device support there is nothing between them.

Cleanote is free to download; Mental Math Exercises costs $0.29 up front. Cleanote sells 2 in-app purchases, starting at $4.99 per month. Mental Math Exercises asks for nothing beyond the download.

Mental Math Exercises ships an update every 2 months, Cleanote every 10 days. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Mental Math Exercises | Cleanote |
| --- | --- | --- |
| Price | $0.29 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 10 days** |
| Size | 1 MB | 26 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [仁超 张](https://appshunter.io/developer/1792659119) | [KARIGARI HOME LLC](https://appshunter.io/developer/6784403761) |

## What reviewers say

### Mental Math Exercises

[App page](https://appshunter.io/ios/app/mental-math-exercises/id6741766258)

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

**In-app purchases:** none


### Cleanote

[App page](https://appshunter.io/ios/app/cleanote/id6784403759)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cleanote Plus Monthly | $4.99 | per month |
| Cleanote Plus Annual | $29.99 | per year |


## Frequently asked questions

### Is Mental Math Exercises free?

Mental Math Exercises costs $0.29, with no in-app purchases.

### Is Cleanote free?

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

### Do Mental Math Exercises or Cleanote have ads?

Neither Mental Math Exercises nor Cleanote shows ads.

### Which is updated more often, Mental Math Exercises or Cleanote?

Mental Math Exercises ships an update every 2 months, and Cleanote every 10 days. Most recently, Mental Math Exercises was updated on October 28, 2026 and Cleanote on October 25, 2026.

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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.*