# Rechenmuffel vs Rechnen mit Köpfchen

The clearest difference is price: Rechenmuffel at Free against Rechnen mit Köpfchen's $1.99. Rechenmuffel also leads on update cadence (every 2 months vs every 6 months). Rechnen mit Köpfchen's advantage is iOS requirement (13.0 vs 15.0). On ads, in-app purchases and device support there is nothing between them.

Rechenmuffel is free to download; Rechnen mit Köpfchen costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Rechenmuffel ships an update every 2 months, Rechnen mit Köpfchen every 6 months. The most recent releases landed on October 26, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Rechenmuffel | Rechnen mit Köpfchen |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 6 months |
| Monetization | — | Paid |
| Size | 10 MB | 44 MB |
| Requires iOS | 15.0 | **13.0** |
| 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


### Rechnen mit Köpfchen

[App page](https://appshunter.io/ios/app/rechnen-mit-kopfchen/id1547091937)

This app helps children discover mathematical relationships and develop calculation strategies. It focuses on understanding how different problems connect and how to use these connections for efficient calculation, rather than just finding answers. It's designed to foster a deeper understanding of math beyond simple counting.

**Highlights:** Discover mathematical relationships, Develop calculation strategies, Understand problem connections, Explore innovative task formats, Adjustable difficulty levels, Suitable for grades 1-4

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Rechenmuffel free?

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

### Is Rechnen mit Köpfchen free?

Rechnen mit Köpfchen costs $1.99, with no in-app purchases.

### Do Rechenmuffel or Rechnen mit Köpfchen have ads?

Neither Rechenmuffel nor Rechnen mit Köpfchen shows ads.

### Which is updated more often, Rechenmuffel or Rechnen mit Köpfchen?

Rechenmuffel ships an update every 2 months, and Rechnen mit Köpfchen every 6 months. Most recently, Rechenmuffel was updated on October 26, 2026 and Rechnen mit Köpfchen 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.*