# Rechenmuffel vs ChoiceTrainer 2.0

The clearest difference is in-app purchases: Rechenmuffel at none against ChoiceTrainer 2.0's 1. ChoiceTrainer 2.0's advantage is update cadence (monthly vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. ChoiceTrainer 2.0 sells 1 one-off in-app purchase. Rechenmuffel asks for nothing beyond the download.

Rechenmuffel ships an update every 2 months, ChoiceTrainer 2.0 monthly. The most recent releases landed on October 26, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Rechenmuffel | ChoiceTrainer 2.0 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Size | 10 MB | 247 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPad | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Martin Dumont](https://appshunter.io/developer/1276033366) | [IntegraTools GmbH](https://appshunter.io/developer/618103816) |

## What reviewers say

### Rechenmuffel

[App page](https://appshunter.io/ios/app/rechenmuffel/id1276033367)

**Features:** macOS Compatibility

**In-app purchases:** none


### ChoiceTrainer 2.0

[App page](https://appshunter.io/ios/app/choicetrainer-20/id6557075794)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Eigene Übungen verwenden | $44.99 | one-time |


## Frequently asked questions

### Is Rechenmuffel free?

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

### Is ChoiceTrainer 2.0 free?

ChoiceTrainer 2.0 is free to download, with in-app purchases available.

### Do Rechenmuffel or ChoiceTrainer 2.0 have ads?

Neither Rechenmuffel nor ChoiceTrainer 2.0 shows ads.

### Which is updated more often, Rechenmuffel or ChoiceTrainer 2.0?

Rechenmuffel ships an update every 2 months, and ChoiceTrainer 2.0 monthly. Most recently, Rechenmuffel was updated on October 26, 2026 and ChoiceTrainer 2.0 on October 27, 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.*