# Numbered Musical Notation vs 洞洞谱

The clearest difference is update cadence: 洞洞谱 at weekly against Numbered Musical Notation's every 6 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Numbered Musical Notation sells 1 one-off in-app purchase and 洞洞谱 sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Numbered Musical Notation ships an update every 6 weeks, 洞洞谱 weekly. The most recent releases landed on September 10, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Numbered Musical Notation | 洞洞谱 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Weekly** |
| Size | 158 MB | 42 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [荣庄 杨](https://appshunter.io/developer/1538534798) | [wenlin Huang](https://appshunter.io/developer/1108308410) |

## What reviewers say

### Numbered Musical Notation

[App page](https://appshunter.io/ios/app/numbered-musical-notation/id1638269166)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro 版本 | $12.99 | one-time |


### 洞洞谱

[App page](https://appshunter.io/ios/app/id6741378672)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月度会员 | $4.99 | per month |
| 季度会员 | $7.99 | per 3 months |
| 年度会员 | $14.99 | per year |


## Frequently asked questions

### Is Numbered Musical Notation free?

Numbered Musical Notation is free to download, with in-app purchases available.

### Is 洞洞谱 free?

洞洞谱 is free to download, with in-app purchases available.

### Do Numbered Musical Notation or 洞洞谱 have ads?

Neither Numbered Musical Notation nor 洞洞谱 shows ads.

### Which is updated more often, Numbered Musical Notation or 洞洞谱?

Numbered Musical Notation ships an update every 6 weeks, and 洞洞谱 weekly. Most recently, Numbered Musical Notation was updated on September 10, 2026 and 洞洞谱 on September 16, 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.*