# Rechenmuffel vs Zerlegen

The clearest difference is price: Rechenmuffel at Free against Zerlegen's $0.49. On update cadence, ads, in-app purchases and device support there is nothing between them.

Rechenmuffel is free to download; Zerlegen costs $0.49 up front. Neither carries in-app purchases, so what you see is what you pay.

Rechenmuffel ships an update every 2 months, Zerlegen every 5 weeks. The most recent releases landed on October 17, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Rechenmuffel | Zerlegen |
| --- | --- | --- |
| Price | **Free** | $0.49 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Size | 10 MB | 52 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | iPad | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Martin Dumont](https://appshunter.io/developer/1276033366) | [Christian Urff](https://appshunter.io/developer/415894463) |

## What reviewers say

### Rechenmuffel

[App page](https://appshunter.io/ios/app/rechenmuffel/id1276033367)

**Features:** macOS Compatibility

**In-app purchases:** none


### Zerlegen

[App page](https://appshunter.io/ios/app/zerlegen/id6793009177)

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

**In-app purchases:** none


## Frequently asked questions

### Is Rechenmuffel free?

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

### Is Zerlegen free?

Zerlegen costs $0.49, with no in-app purchases.

### Do Rechenmuffel or Zerlegen have ads?

Neither Rechenmuffel nor Zerlegen shows ads.

### Which is updated more often, Rechenmuffel or Zerlegen?

Rechenmuffel ships an update every 2 months, and Zerlegen every 5 weeks. Most recently, Rechenmuffel was updated on October 17, 2026 and Zerlegen on October 14, 2026.

---

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