# Math101 Sketchy vs Problems Involving Percent

The clearest difference is ads: Problems Involving Percent at none against Math101 Sketchy's shown. On price, in-app purchases, device support and iOS requirement 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 | Math101 Sketchy | Problems Involving Percent |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Size | 9 MB | 37 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Emrah Korkmaz](https://appshunter.io/developer/1485564066) | [Science Education Institute](https://appshunter.io/developer/1439710468) |

## What reviewers say

### Math101 Sketchy

[App page](https://appshunter.io/ios/app/math101-sketchy/id1574055078)

**Features:** Vision Pro support

**In-app purchases:** none


### Problems Involving Percent

[App page](https://appshunter.io/ios/app/problems-involving-percent/id6736588730)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Math101 Sketchy free?

Math101 Sketchy is free to download, with no in-app purchases.

### Is Problems Involving Percent free?

Problems Involving Percent is free to download, with no in-app purchases.

### Do Math101 Sketchy or Problems Involving Percent have ads?

Math101 Sketchy shows ads; Problems Involving Percent 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.*