# Learn Math Fast vs CombiPerm Calculator by CS

The clearest difference is in-app purchases: Learn Math Fast at none against CombiPerm Calculator by CS's 1. Learn Math Fast also leads on ads (none vs shown) and iOS requirement (13.0 vs 26.0). On price and device support there is nothing between them.

Both are free to download. CombiPerm Calculator by CS sells 1 one-off in-app purchase. Learn Math Fast asks for nothing beyond the download.

## The numbers

| Metric | Learn Math Fast | CombiPerm Calculator by CS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Size | 46 MB | 12 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | +4 | 4+ |
| Developer | [Haileslassie Lilay Desalegn](https://appshunter.io/developer/1841785547) | [ChatStick Company Limited](https://appshunter.io/developer/1165816085) |

## What reviewers say

### Learn Math Fast

[App page](https://appshunter.io/ios/app/learn-math-fast-math-masters/id6757105197)

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

**In-app purchases:** none


### CombiPerm Calculator by CS

[App page](https://appshunter.io/ios/app/combiperm-calculator-by-cs/id6761089836)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Features | $2.99 | one-time |


## Frequently asked questions

### Is Learn Math Fast free?

Learn Math Fast is free to download, with no in-app purchases.

### Is CombiPerm Calculator by CS free?

CombiPerm Calculator by CS is free to download, with in-app purchases available.

### Do Learn Math Fast or CombiPerm Calculator by CS have ads?

CombiPerm Calculator by CS shows ads; Learn Math Fast 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.*