# jsLinux22 vs mastering embedded system

The clearest difference is iOS requirement: mastering embedded system at 12.0 against jsLinux22's 15.5. On price, ads, 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 | jsLinux22 | mastering embedded system |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | — |
| Size | 200 MB | 20 MB |
| Requires iOS | 15.5 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Luis Acevedo-Arreguin](https://appshunter.io/developer/1642773653) | [Marina Nabil](https://appshunter.io/developer/1720343772) |

## What reviewers say

### jsLinux22

[App page](https://appshunter.io/ios/app/jslinux22/id6444092531)

**In-app purchases:** none


### mastering embedded system

[App page](https://appshunter.io/ios/app/mastering-embedded-system/id6476138855)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is jsLinux22 free?

jsLinux22 is free to download, with no in-app purchases.

### Is mastering embedded system free?

mastering embedded system is free to download, with no in-app purchases.

### Do jsLinux22 or mastering embedded system have ads?

Neither jsLinux22 nor mastering embedded system 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.*