# Rotor vs KosmoFIT

The clearest difference is device support: Rotor at 3 against KosmoFIT's —. KosmoFIT's advantage is iOS requirement (13.0 vs 15.0). 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 | Rotor | KosmoFIT |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Every 3 months | — |
| Size | 22 MB | 9 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [Mikhail Gusev](https://appshunter.io/developer/1564573299) | [Lev Ovanoglyan](https://appshunter.io/developer/1693327922) |

## What reviewers say

### Rotor

[App page](https://appshunter.io/ios/app/rotor/id1564573297)

**Features:** macOS Compatibility

**In-app purchases:** none


### KosmoFIT

[App page](https://appshunter.io/ios/app/kosmofit/id6469628458)

**In-app purchases:** none


## Frequently asked questions

### Is Rotor free?

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

### Is KosmoFIT free?

KosmoFIT 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.*