# LKH forum plus vs Undenheim

The clearest difference is update cadence: Undenheim at every 15 months against LKH forum plus's every 34 months. 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.

LKH forum plus ships an update every 34 months, Undenheim every 15 months. The most recent releases landed on October 1, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | LKH forum plus | Undenheim |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 34 months | **Every 15 months** |
| Size | 5 MB | 7 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Landeskrankenhaus (AöR)](https://appshunter.io/developer/1548277803) | [apicodo GmbH](https://appshunter.io/developer/1169099711) |

## What reviewers say

### LKH forum plus

[App page](https://appshunter.io/ios/app/lkh-forum-plus/id1548277801)

**Features:** Vision Pro support

**In-app purchases:** none


### Undenheim

[App page](https://appshunter.io/ios/app/undenheim/id6745123749)

**In-app purchases:** none


## Frequently asked questions

### Is LKH forum plus free?

LKH forum plus is free to download, with no in-app purchases.

### Is Undenheim free?

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

### Do LKH forum plus or Undenheim have ads?

Neither LKH forum plus nor Undenheim shows ads.

### Which is updated more often, LKH forum plus or Undenheim?

LKH forum plus ships an update every 34 months, and Undenheim every 15 months. Most recently, LKH forum plus was updated on October 1, 2026 and Undenheim on September 29, 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.*