# 音階衰弱 vs NoteRunner

The clearest difference is ads: 音階衰弱 at none against NoteRunner's shown. 音階衰弱 also leads on iOS requirement (11.3 vs 18.0). On price, 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 | 音階衰弱 | NoteRunner |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | — | Fortnightly |
| Size | 10 MB | 6 MB |
| Requires iOS | **11.3** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tatsuya Kazama](https://appshunter.io/developer/1352156628) | [MIZOU, CO., LTD.](https://appshunter.io/developer/1542553141) |

## What reviewers say

### 音階衰弱

[App page](https://appshunter.io/ios/app/id1399412197)

**Features:** macOS Compatibility

**In-app purchases:** none


### NoteRunner

[App page](https://appshunter.io/ios/app/noterunner-note-game/id6760548010)

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

**In-app purchases:** none


## Frequently asked questions

### Is 音階衰弱 free?

音階衰弱 is free to download, with no in-app purchases.

### Is NoteRunner free?

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

### Do 音階衰弱 or NoteRunner have ads?

NoteRunner shows ads; 音階衰弱 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.*