# App Rechenrakete 20 vs Jojo's Mathe

The clearest difference is device support: App Rechenrakete 20 at 3 against Jojo's Mathe's —. App Rechenrakete 20 also leads on iOS requirement (12.0 vs 17.0). On price, update cadence and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

App Rechenrakete 20 ships an update every 6 weeks, Jojo's Mathe monthly. The most recent releases landed on October 31, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | App Rechenrakete 20 | Jojo's Mathe |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Every 6 weeks | **Monthly** |
| Size | 59 MB | 20 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [Sandra Seiwert](https://appshunter.io/developer/1695078525) | [Gruepi GmbH](https://appshunter.io/developer/1883836918) |

## What reviewers say

### App Rechenrakete 20

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Jojo's Mathe

[App page](https://appshunter.io/ios/app/jojos-mathe-eule/id6760621277)

**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 Jojo's Mathe free?

Jojo's Mathe is free to download, with no in-app purchases.

### Which is updated more often, App Rechenrakete 20 or Jojo's Mathe?

App Rechenrakete 20 ships an update every 6 weeks, and Jojo's Mathe monthly. Most recently, App Rechenrakete 20 was updated on October 31, 2026 and Jojo's Mathe on October 18, 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.*