# CSF vs M

The clearest difference is iOS requirement: CSF at 11.0 against M's 13.0. 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 | CSF | M |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 14 months |
| Size | 58 MB | 45 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Werner Albaum](https://appshunter.io/developer/999722729) | [JMarquardt Technologies GmbH](https://appshunter.io/developer/526168096) |

## What reviewers say

### CSF

[App page](https://appshunter.io/ios/app/csf-app/id1667621010)

**Features:** macOS Compatibility

**In-app purchases:** none


### M

[App page](https://appshunter.io/ios/app/m-group-virtual/id6448281002)

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

**In-app purchases:** none


## Frequently asked questions

### Is CSF free?

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

### Is M free?

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

### Do CSF or M have ads?

Neither CSF nor M 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.*