# YaoSound vs A chang

The clearest difference is iOS requirement: A chang at 13 against YaoSound's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

YaoSound ships an update every 3 weeks, A chang fortnightly. The most recent releases landed on September 15, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | YaoSound | A chang |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Size | 56 MB | 2 MB |
| Requires iOS | 15.0 | **13** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Magnet Technology Co.,Ltd](https://appshunter.io/developer/1606759318) | [Shenzhen Shenglong Technology Co., Ltd](https://appshunter.io/developer/1748314415) |

## What reviewers say

### YaoSound

[App page](https://appshunter.io/ios/app/yaosound/id1606759316)

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

**In-app purchases:** none


### A chang

[App page](https://appshunter.io/ios/app/a-chang/id6744846154)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is YaoSound free?

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

### Is A chang free?

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

### Do YaoSound or A chang have ads?

Neither YaoSound nor A chang shows ads.

### Which is updated more often, YaoSound or A chang?

YaoSound ships an update every 3 weeks, and A chang fortnightly. Most recently, YaoSound was updated on September 15, 2026 and A chang on September 20, 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.*