# KOSPEL PPE4 vs Biotronix

The clearest difference is device support: Biotronix at 3 against KOSPEL PPE4's —. KOSPEL PPE4's advantage is iOS requirement (11.0 vs 13.0). On price and in-app purchases 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 | KOSPEL PPE4 | Biotronix |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | — | Monthly |
| Size | 30 MB | 30 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 17+ | 12+ |
| Developer | [KOSPEL Sp. z o. o.](https://appshunter.io/developer/1707316966) | [Litespeed AG](https://appshunter.io/developer/1751562990) |

## What reviewers say

### KOSPEL PPE4

[App page](https://appshunter.io/ios/app/kospel-ppe4/id6466396869)

**In-app purchases:** none


### Biotronix

[App page](https://appshunter.io/ios/app/biotronix/id6504259124)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is KOSPEL PPE4 free?

KOSPEL PPE4 is free to download, with no in-app purchases.

### Is Biotronix free?

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

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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.*