# 音乐计算器 vs Numbered Musical Notation

The clearest difference is in-app purchases: 音乐计算器 at none against Numbered Musical Notation's 1. Numbered Musical Notation's advantage is update cadence (every 6 weeks vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Numbered Musical Notation sells 1 one-off in-app purchase. 音乐计算器 asks for nothing beyond the download.

音乐计算器 ships an update every 4 months, Numbered Musical Notation every 6 weeks. The most recent releases landed on October 24, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | 音乐计算器 | Numbered Musical Notation |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (9 ratings)](https://appshunter.io/ios/app/id1533444439/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 6 weeks** |
| Size | 11 MB | 158 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [仕清 刘](https://appshunter.io/developer/1531464103) | [荣庄 杨](https://appshunter.io/developer/1538534798) |

## What reviewers say

### 音乐计算器

[App page](https://appshunter.io/ios/app/id1533444439)

**Features:** macOS Compatibility, 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 音乐计算器 free?

音乐计算器 is free to download, with no in-app purchases.

### Is Numbered Musical Notation free?

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

### Do 音乐计算器 or Numbered Musical Notation have ads?

Neither 音乐计算器 nor Numbered Musical Notation shows ads.

### Which is updated more often, 音乐计算器 or Numbered Musical Notation?

音乐计算器 ships an update every 4 months, and Numbered Musical Notation every 6 weeks. Most recently, 音乐计算器 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.*