# Harmonius vs Onkan

The clearest difference is ads: Harmonius at none against Onkan's shown. On price, in-app purchases, device support and iOS requirement 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 | Harmonius | Onkan |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | — | Every 2 months |
| Monetization | — | Ad-supported |
| Size | 152 MB | 6 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Lorenzo Brown](https://appshunter.io/developer/1496868083) | [BYNET](https://appshunter.io/developer/1811735131) |

## What reviewers say

### Harmonius

[App page](https://appshunter.io/ios/app/harmonius/id6499569641)

**Features:** macOS Compatibility

**In-app purchases:** none


### Onkan

[App page](https://appshunter.io/ios/app/onkan-ear-training-quiz/id6760823374)

This app offers a quiz-style game to help you identify musical notes by ear. Improve your pitch recognition through practice with adjustable difficulty levels and track your progress over time. It's designed to enhance your musical understanding and ear training.

**Highlights:** Note identification quizzes, Three difficulty levels, Score tracking and history, Five-tier ranking system, Share results with friends, Japanese/English language support

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

**In-app purchases:** none


## Frequently asked questions

### Is Harmonius free?

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

### Is Onkan free?

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

### Do Harmonius or Onkan have ads?

Onkan shows ads; Harmonius does not.

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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.*