# 随身守护 vs 极速音频转换器

The clearest difference is ads: 极速音频转换器 at none against 随身守护's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. 随身守护 sells 7 in-app purchases, starting at $6.99 per 7 days and 极速音频转换器 sells 4 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

随身守护 ships an update fortnightly, 极速音频转换器 every 9 days. The most recent releases landed on October 6, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | 随身守护 | 极速音频转换器 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Every 9 days** |
| Size | 80 MB | 104 MB |
| Requires iOS | **14.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 9+ | 4+ |
| Developer | [广州星匀贸易有限公司](https://appshunter.io/developer/1775365992) | [青青 吴](https://appshunter.io/developer/1594811700) |

## What reviewers say

### 随身守护

[App page](https://appshunter.io/ios/app/id6772071129)

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 随身守护周会员 | $6.99 | per 7 days |
| 随身守护周会员 | $9.99 | per 7 days |
| 随身守护月会员 | $9.99 | per month |
| 月订阅会员 | $14.99 | per month |
| 月订阅会员 | $14.99 | per month |
| 年订阅会员 | $29.99 | per year |
| 随身守护年会员 | $59.99 | per year |


### 极速音频转换器

[App page](https://appshunter.io/ios/app/mp3/id6785784978)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $3.99 | per month |
| Weekly VIP | $3.99 | per 7 days |
| 年度会员 | $4.99 | per year |
| Permanent VIP | $7.99 | one-time |


## Frequently asked questions

### Is 随身守护 free?

随身守护 is free to download, with in-app purchases available.

### Is 极速音频转换器 free?

极速音频转换器 is free to download, with in-app purchases available.

### Do 随身守护 or 极速音频转换器 have ads?

随身守护 shows ads; 极速音频转换器 does not.

### Which is updated more often, 随身守护 or 极速音频转换器?

随身守护 ships an update fortnightly, and 极速音频转换器 every 9 days. Most recently, 随身守护 was updated on October 6, 2026 and 极速音频转换器 on October 8, 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.*