# Astert vs Undenheim

The clearest difference is update cadence: Undenheim at every 15 months against Astert's every 40 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.

Astert ships an update every 40 months, Undenheim every 15 months. The most recent releases landed on September 26, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Astert | Undenheim |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 40 months | **Every 15 months** |
| Size | 8 MB | 7 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

### Astert

[App page](https://appshunter.io/ios/app/astert/id1625862639)

**In-app purchases:** none


### Undenheim

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

**In-app purchases:** none


## Frequently asked questions

### Is Astert free?

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

### Is Undenheim free?

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

### Do Astert or Undenheim have ads?

Neither Astert nor Undenheim shows ads.

### Which is updated more often, Astert or Undenheim?

Astert ships an update every 40 months, and Undenheim every 15 months. Most recently, Astert was updated on September 26, 2026 and Undenheim on September 29, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*