# Notes Quiz (ノーツクイズ) vs ChordsVault

The clearest difference is rating: ChordsVault at 5.0 against Notes Quiz (ノーツクイズ)'s 2.3. ChordsVault also leads on in-app purchases (none vs 1) and ads (none vs shown). Notes Quiz (ノーツクイズ)'s advantage is update cadence (every 2 weeks vs every 6 weeks) and ratings volume (3 vs 1). On price 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. ChordsVault asks for nothing beyond the download.

ChordsVault holds the better App Store score, 5.0 against 2.3. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

Notes Quiz (ノーツクイズ) ships an update every 2 weeks, ChordsVault every 6 weeks. The most recent releases landed on September 25, 2026 and June 25, 2026 respectively.

## The numbers

| Metric | Notes Quiz (ノーツクイズ) | ChordsVault |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (3 ratings)](https://appshunter.io/ios/app/notes-quiz/id998247786/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/chordsvault/id1024176980/reviews)** |
| Number of ratings | **3** | 1 |
| Positive reviews | 42.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 6 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 15 MB | 18 MB |
| Requires iOS | 17.6 | **6.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [feb19](https://appshunter.io/developer/358045838) | [Valentin Chernyak](https://appshunter.io/developer/1024176979) |

## 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 |


### ChordsVault

[App page](https://appshunter.io/ios/app/chordsvault/id1024176980)

Create, design, and share guitar and instrument chords and songs. This app offers flexibility for transcribers and performers, allowing on-the-fly chord design, reuse, sharing, and transposition to different keys, tunings, and instruments.

**Highlights:** Create and design chords, Share songs and chords, Reuse chords between songs, Transpose songs to different keys, Support for various instruments and tunings

**Features:** macOS Compatibility

**In-app purchases:** none


## 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 ChordsVault free?

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

### Which has better reviews, Notes Quiz (ノーツクイズ) or ChordsVault?

ChordsVault is rated higher. Notes Quiz (ノーツクイズ) averages 2.3 out of 5 from 3 ratings, while ChordsVault averages 5.0 from 1 ratings.

### Do Notes Quiz (ノーツクイズ) or ChordsVault have ads?

Notes Quiz (ノーツクイズ) shows ads; ChordsVault does not.

### Which is updated more often, Notes Quiz (ノーツクイズ) or ChordsVault?

Notes Quiz (ノーツクイズ) ships an update every 2 weeks, and ChordsVault every 6 weeks. Most recently, Notes Quiz (ノーツクイズ) was updated on September 25, 2026 and ChordsVault on June 25, 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.*