# App Rechenrakete 20 vs Zerlegen

The clearest difference is price: App Rechenrakete 20 at Free against Zerlegen's $0.49. App Rechenrakete 20 also leads on device support (3 vs 1) and iOS requirement (12.0 vs 16.0). Zerlegen's advantage is update cadence (every 2 weeks vs every 6 weeks). On ads and in-app purchases there is nothing between them.

App Rechenrakete 20 is free to download; Zerlegen costs $0.49 up front. Neither carries in-app purchases, so what you see is what you pay.

App Rechenrakete 20 ships an update every 6 weeks, Zerlegen every 2 weeks. Both last shipped on October 31, 2026.

## The numbers

| Metric | App Rechenrakete 20 | Zerlegen |
| --- | --- | --- |
| Price | **Free** | $0.49 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 2 weeks** |
| Size | 59 MB | 52 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sandra Seiwert](https://appshunter.io/developer/1695078525) | [Christian Urff](https://appshunter.io/developer/415894463) |

## What reviewers say

### App Rechenrakete 20

[App page](https://appshunter.io/ios/app/app-rechenrakete-20/id6760218073)

**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 App Rechenrakete 20 free?

App Rechenrakete 20 is free to download, with no in-app purchases.

### Is Zerlegen free?

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

### Do App Rechenrakete 20 or Zerlegen have ads?

Neither App Rechenrakete 20 nor Zerlegen shows ads.

### Which is updated more often, App Rechenrakete 20 or Zerlegen?

App Rechenrakete 20 ships an update every 6 weeks, and Zerlegen every 2 weeks. Most recently, App Rechenrakete 20 was updated on October 31, 2026 and Zerlegen on October 31, 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.*