# OSS Messenger vs KommUnity

The clearest difference is iOS requirement: KommUnity at 13.0 against OSS Messenger's 15.0. On price, update cadence, ads 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.

OSS Messenger ships an update every 5 weeks, KommUnity every 3 weeks. The most recent releases landed on September 21, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | OSS Messenger | KommUnity |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 52 MB | 32 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sdui GmbH](https://appshunter.io/developer/1034926222) | [AKF - Arbeitsgemeinschaft für katholische Familienbildung e.V., Bonn](https://appshunter.io/developer/1442100110) |

## What reviewers say

### OSS Messenger

[App page](https://appshunter.io/ios/app/oss-messenger/id1618783644)

This app facilitates secure and mobile communication for teachers, students, and parents within the Saarland education system. It enables direct messages, group chats, voice messages, video conferences, and translation features to enhance school-wide communication.

**Highlights:** Secure messaging, Group and voice messages, Video conferences, Translation feature, Surveys and polls, Read receipts, Customizable availability times

**Features:** Vision Pro support

**In-app purchases:** none


### KommUnity

[App page](https://appshunter.io/ios/app/kommunity/id6748228829)

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

**In-app purchases:** none


## Frequently asked questions

### Is OSS Messenger free?

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

### Is KommUnity free?

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

### Do OSS Messenger or KommUnity have ads?

Neither OSS Messenger nor KommUnity shows ads.

### Which is updated more often, OSS Messenger or KommUnity?

OSS Messenger ships an update every 5 weeks, and KommUnity every 3 weeks. Most recently, OSS Messenger was updated on September 21, 2026 and KommUnity on September 9, 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.*