# 解压专家 vs PDF Converter

The clearest difference is iOS requirement: 解压专家 at 12.4 against PDF Converter's 15.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. 解压专家 sells 3 in-app purchases, starting at $1.99 per month and PDF Converter sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

解压专家 ships an update every 2 weeks, PDF Converter fortnightly. The most recent releases landed on October 10, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | 解压专家 | PDF Converter |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Fortnightly |
| Size | 12 MB | 8 MB |
| Requires iOS | **12.4** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [双双 孙](https://appshunter.io/developer/1734637742) | [裕汉 李](https://appshunter.io/developer/1868711251) |

## What reviewers say

### 解压专家

[App page](https://appshunter.io/ios/app/id6483253343)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 文件解压缩zip-支持多格式解压缩月会员 | $1.99 | per month |
| 文件解压缩zip-支持多格式解压缩年会员 | $14.99 | per year |
| 文件解压缩zip-支持多格式解压缩永久会员 | $29.99 | one-time |


### PDF Converter

[App page](https://appshunter.io/ios/app/pdf-converter-fast-efficient/id6760534390)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PDF转换器周VIP限时优惠 | $4.99 | per 7 days |
| PDF转换器年VIP特价回馈 | $24.99 | per year |


## Frequently asked questions

### Is 解压专家 free?

解压专家 is free to download, with in-app purchases available.

### Is PDF Converter free?

PDF Converter is free to download, with in-app purchases available.

### Do 解压专家 or PDF Converter have ads?

Neither 解压专家 nor PDF Converter shows ads.

### Which is updated more often, 解压专家 or PDF Converter?

解压专家 ships an update every 2 weeks, and PDF Converter fortnightly. Most recently, 解压专家 was updated on October 10, 2026 and PDF Converter on October 6, 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.*