# 格式转换助手 vs MP3转换助手

The clearest difference is update cadence: MP3转换助手 at weekly against 格式转换助手's every 5 months. 格式转换助手's advantage is device support (4 vs 2). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. 格式转换助手 sells 3 one-off in-app purchases and MP3转换助手 sells 5 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

格式转换助手 ships an update every 5 months, MP3转换助手 weekly. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | 格式转换助手 | MP3转换助手 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Weekly** |
| Size | 32 MB | 109 MB |
| Requires iOS | 15.0 | 15 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [QQY.LTD](https://appshunter.io/developer/1743706249) | [文君 豆](https://appshunter.io/developer/1638750199) |

## What reviewers say

### 格式转换助手

[App page](https://appshunter.io/ios/app/id6670539731)

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月卡 | $0.99 | one-time |
| 季卡 | $2.99 | one-time |
| 年卡 | $9.99 | one-time |


### MP3转换助手

[App page](https://appshunter.io/ios/app/mp3-and/id6788697028)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 周订阅-前3天试用 | $2.99 | per 7 days |
| 周订阅-首期折扣 | $2.99 | per 7 days |
| 周订阅 | $2.99 | per 7 days |
| 月订阅 | $4.99 | per month |
| 年订阅 | $14.99 | per year |


## Frequently asked questions

### Is 格式转换助手 free?

格式转换助手 is free to download, with in-app purchases available.

### Is MP3转换助手 free?

MP3转换助手 is free to download, with in-app purchases available.

### Do 格式转换助手 or MP3转换助手 have ads?

Neither 格式转换助手 nor MP3转换助手 shows ads.

### Which is updated more often, 格式转换助手 or MP3转换助手?

格式转换助手 ships an update every 5 months, and MP3转换助手 weekly. Most recently, 格式转换助手 was updated on October 27, 2026 and MP3转换助手 on October 28, 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.*