# 掌上键笙 vs Numbered Musical Notation

The clearest difference is price: Numbered Musical Notation at Free against 掌上键笙's $3.99. Numbered Musical Notation also leads on update cadence (every 6 weeks vs every 9 months). 掌上键笙's advantage is in-app purchases (none vs 1) and iOS requirement (12.0 vs 14.0). On ads and device support there is nothing between them.

Numbered Musical Notation is free to download; 掌上键笙 costs $3.99 up front. Numbered Musical Notation sells 1 one-off in-app purchase. 掌上键笙 asks for nothing beyond the download.

掌上键笙 ships an update every 9 months, Numbered Musical Notation every 6 weeks. The most recent releases landed on October 24, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | 掌上键笙 | Numbered Musical Notation |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 6 weeks** |
| Size | 89 MB | 158 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [鑫磊 张](https://appshunter.io/developer/1051215758) | [荣庄 杨](https://appshunter.io/developer/1538534798) |

## What reviewers say

### 掌上键笙

[App page](https://appshunter.io/ios/app/id1182217883)

**Features:** Vision Pro support

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is 掌上键笙 free?

掌上键笙 costs $3.99, with no in-app purchases.

### Is Numbered Musical Notation free?

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

### Do 掌上键笙 or Numbered Musical Notation have ads?

Neither 掌上键笙 nor Numbered Musical Notation shows ads.

### Which is updated more often, 掌上键笙 or Numbered Musical Notation?

掌上键笙 ships an update every 9 months, and Numbered Musical Notation every 6 weeks. Most recently, 掌上键笙 was updated on October 24, 2026 and Numbered Musical Notation on October 14, 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.*