# Hattert vs Klein

The clearest difference is update cadence: Klein at every 20 months against Hattert's every 52 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.

Hattert ships an update every 52 months, Klein every 20 months. The most recent releases landed on October 4, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Hattert | Klein |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 52 months | **Every 20 months** |
| Size | 13 MB | 6 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Verbandsgemeinde Hachenburg](https://appshunter.io/developer/1625636202) | [apicodo GmbH](https://appshunter.io/developer/1169099711) |

## What reviewers say

### Hattert

[App page](https://appshunter.io/ios/app/hattert/id1626091084)

**Features:** Vision Pro support

**In-app purchases:** none


### Klein

[App page](https://appshunter.io/ios/app/klein-winternheim/id6740323722)

**In-app purchases:** none


## Frequently asked questions

### Is Hattert free?

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

### Is Klein free?

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

### Do Hattert or Klein have ads?

Neither Hattert nor Klein shows ads.

### Which is updated more often, Hattert or Klein?

Hattert ships an update every 52 months, and Klein every 20 months. Most recently, Hattert was updated on October 4, 2026 and Klein on October 1, 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.*