# Notes Quiz (ノーツクイズ) vs おとカード

The clearest difference is ads: おとカード at none against Notes Quiz (ノーツクイズ)'s shown. おとカード also leads on update cadence (daily vs every 2 weeks). Notes Quiz (ノーツクイズ)'s advantage is iOS requirement (17.6 vs 26.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Notes Quiz (ノーツクイズ) sells 1 one-off in-app purchase and おとカード sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Notes Quiz (ノーツクイズ) ships an update every 2 weeks, おとカード daily. The most recent releases landed on September 25, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Notes Quiz (ノーツクイズ) | おとカード |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (3 ratings)](https://appshunter.io/ios/app/notes-quiz/id998247786/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 42.9% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 15 MB | 43 MB |
| Requires iOS | **17.6** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [feb19](https://appshunter.io/developer/358045838) | [TAKASHI KOJIMA](https://appshunter.io/developer/6776510628) |

## What reviewers say

### Notes Quiz (ノーツクイズ)

[App page](https://appshunter.io/ios/app/notes-quiz/id998247786)

This music training app helps beginners and intermediate players improve their sight-reading skills. It offers quizzes to match musical notes with instrument keys, enhancing musicality and performance. Practice various keys and challenge yourself with increasing difficulty levels.

**Highlights:** Note-to-key matching quizzes, Supports various musical keys, Adaptive difficulty levels, Hint system for assistance, Global high score competition, Expandable with in-app purchases

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 拡張機能を追加：特殊な音部記号を追加 | $0.99 | one-time |


### おとカード

[App page](https://appshunter.io/ios/app/id6802930735)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 投げ銭240円 | $0.99 | one-time |
| 投げ銭120円 | $0.99 | one-time |
| プレミアム機能解放 | $1.99 | one-time |


## Frequently asked questions

### Is Notes Quiz (ノーツクイズ) free?

Notes Quiz (ノーツクイズ) is free to download, with in-app purchases available.

### Is おとカード free?

おとカード is free to download, with in-app purchases available.

### Do Notes Quiz (ノーツクイズ) or おとカード have ads?

Notes Quiz (ノーツクイズ) shows ads; おとカード does not.

### Which is updated more often, Notes Quiz (ノーツクイズ) or おとカード?

Notes Quiz (ノーツクイズ) ships an update every 2 weeks, and おとカード daily. Most recently, Notes Quiz (ノーツクイズ) was updated on September 25, 2026 and おとカード on September 18, 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.*