# 万能扫描王 vs PDF Compressor

The clearest difference is iOS requirement: 万能扫描王 at 13.0 against PDF Compressor's 16.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. 万能扫描王 sells 4 in-app purchases, starting at $4.99 per 7 days and PDF Compressor sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

万能扫描王 ships an update monthly, PDF Compressor every 3 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | 万能扫描王 | PDF Compressor |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Size | 31 MB | 7 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [莎莎 李](https://appshunter.io/developer/1896739152) | [荣晖 丁](https://appshunter.io/developer/1455797103) |

## What reviewers say

### 万能扫描王

[App page](https://appshunter.io/ios/app/and-ocr/id6756878304)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 周会员 | $4.99 | per 7 days |
| 季度会员 | $9.99 | per 3 months |
| 年会员 | $12.99 | per year |
| 永久会员 | $14.99 | one-time |


### PDF Compressor

[App page](https://appshunter.io/ios/app/pdf-compressor-shrink-files/id6767108146)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro | $0.99 | per month |
| Yearly Pro | $2.99 | per year |
| Lifetime Pro | $3.99 | one-time |


## Frequently asked questions

### Is 万能扫描王 free?

万能扫描王 is free to download, with in-app purchases available.

### Is PDF Compressor free?

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

### Do 万能扫描王 or PDF Compressor have ads?

Neither 万能扫描王 nor PDF Compressor shows ads.

### Which is updated more often, 万能扫描王 or PDF Compressor?

万能扫描王 ships an update monthly, and PDF Compressor every 3 weeks. Most recently, 万能扫描王 was updated on October 24, 2026 and PDF Compressor on October 24, 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.*