# Rechenmuffel vs The Shape Factory

The clearest difference is iOS requirement: Rechenmuffel at 15.0 against The Shape Factory's 17.0. On price, ads, in-app purchases and device support there is nothing between them.

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

## The numbers

| Metric | Rechenmuffel | The Shape Factory |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Size | 10 MB | 53 MB |
| Requires iOS | **15.0** | 17.0 |
| 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


### The Shape Factory

[App page](https://appshunter.io/ios/app/the-shape-factory/id6746658861)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Rechenmuffel free?

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

### Is The Shape Factory free?

The Shape Factory is free to download, with no in-app purchases.

### Do Rechenmuffel or The Shape Factory have ads?

Neither Rechenmuffel nor The Shape Factory shows ads.

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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.*