# Üben vs Regenbogen Musik & Kunstschule

The clearest difference is price: Regenbogen Musik & Kunstschule at Free against Üben's $0.99. Regenbogen Musik & Kunstschule also leads on update cadence (monthly vs every 11 months). Üben's advantage is iOS requirement (12.0 vs 15.5). On ads, in-app purchases and device support there is nothing between them.

Regenbogen Musik & Kunstschule is free to download; Üben costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Üben ships an update every 11 months, Regenbogen Musik & Kunstschule monthly. The most recent releases landed on November 6, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Üben | Regenbogen Musik & Kunstschule |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Monthly** |
| Monetization | Paid | — |
| Size | 19 MB | 15 MB |
| Requires iOS | **12.0** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [admaDIC Rainer Schwarze & Annett Schwarze GbR](https://appshunter.io/developer/553282875) | [Mikel Software GmbH](https://appshunter.io/developer/1234541164) |

## What reviewers say

### Üben

[App page](https://appshunter.io/ios/app/uben-conversion/id1061481156)

Practice converting units of length and weight with this simple educational app. It generates random conversion tasks, perfect for children to learn and test their knowledge.

**Highlights:** Unit conversion practice, Length and weight units, Random task generation, Correct/incorrect feedback, Child-friendly design

**Features:** Vision Pro support

**In-app purchases:** none


### Regenbogen Musik & Kunstschule

[App page](https://appshunter.io/ios/app/regenbogen-musik-and-kunstschule/id1583941121)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Üben free?

Üben costs $0.99, with no in-app purchases.

### Is Regenbogen Musik & Kunstschule free?

Regenbogen Musik & Kunstschule is free to download, with no in-app purchases.

### Do Üben or Regenbogen Musik & Kunstschule have ads?

Neither Üben nor Regenbogen Musik & Kunstschule shows ads.

### Which is updated more often, Üben or Regenbogen Musik & Kunstschule?

Üben ships an update every 11 months, and Regenbogen Musik & Kunstschule monthly. Most recently, Üben was updated on November 6, 2026 and Regenbogen Musik & Kunstschule 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.*