# Angle Farm vs Rechnen mit Köpfchen

The clearest difference is price: Angle Farm at Free against Rechnen mit Köpfchen's $1.99. Angle Farm also leads on device support (3 vs 1) and iOS requirement (11.0 vs 13.0). On update cadence, ads and in-app purchases there is nothing between them.

Angle Farm 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.

Angle Farm ships an update every 7 months, Rechnen mit Köpfchen every 6 months. The most recent releases landed on October 26, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Angle Farm | Rechnen mit Köpfchen |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 6 months** |
| Monetization | — | Paid |
| Size | 114 MB | 44 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Heiko Etzold](https://appshunter.io/developer/715739131) | [Christian Urff](https://appshunter.io/developer/415894463) |

## What reviewers say

### Angle Farm

[App page](https://appshunter.io/ios/app/angle-farm/id1369585218)

**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 Angle Farm free?

Angle Farm 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 Angle Farm or Rechnen mit Köpfchen have ads?

Neither Angle Farm nor Rechnen mit Köpfchen shows ads.

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

Angle Farm ships an update every 7 months, and Rechnen mit Köpfchen every 6 months. Most recently, Angle Farm was updated on October 26, 2026 and Rechnen mit Köpfchen on October 14, 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.*