# insideMKK vs RezApptfrei

The clearest difference is update cadence: insideMKK at fortnightly against RezApptfrei's every 4 months. RezApptfrei's advantage is iOS requirement (15.0 vs 17.0). 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.

insideMKK ships an update fortnightly, RezApptfrei every 4 months. The most recent releases landed on November 7, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | insideMKK | RezApptfrei |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 4 months |
| Size | 87 MB | 6 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Main-Kinzig-Kliniken gGmbh](https://appshunter.io/developer/1623242170) | [Klinikum Aschaffenburg-Alzenau gGmbH](https://appshunter.io/developer/1892396100) |

## What reviewers say

### insideMKK

[App page](https://appshunter.io/ios/app/insidemkk/id1623242168)

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

**In-app purchases:** none


### RezApptfrei

[App page](https://appshunter.io/ios/app/rezapptfrei/id6762002986)

**In-app purchases:** none


## Frequently asked questions

### Is insideMKK free?

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

### Is RezApptfrei free?

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

### Do insideMKK or RezApptfrei have ads?

Neither insideMKK nor RezApptfrei shows ads.

### Which is updated more often, insideMKK or RezApptfrei?

insideMKK ships an update fortnightly, and RezApptfrei every 4 months. Most recently, insideMKK was updated on November 7, 2026 and RezApptfrei on November 5, 2026.

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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.*