# pdf转换器 vs PDF Master

The clearest difference is update cadence: pdf转换器 at every 2 weeks against PDF Master's every 15 months. pdf转换器 also leads on iOS requirement (11.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. pdf转换器 sells 2 in-app purchases, starting at $2.99 per 3 months and PDF Master sells 6 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

pdf转换器 ships an update every 2 weeks, PDF Master every 15 months. The most recent releases landed on September 18, 2026 and May 17, 2026 respectively.

## The numbers

| Metric | pdf转换器 | PDF Master |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 15 months |
| Size | 46 MB | 8 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shanghai Yuanlai Infomation Technology Co., Ltd.](https://appshunter.io/developer/958193889) | [程 张](https://appshunter.io/developer/1523996955) |

## What reviewers say

### pdf转换器

[App page](https://appshunter.io/ios/app/pdf/id1626680966)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 升级为会员 | $2.99 | per 3 months |
| 升级为超级会员 | $3.99 | per 3 months |


### PDF Master

[App page](https://appshunter.io/ios/app/pdf-master-reader-and-converter/id1645087890)

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PDF转换器Pro周VIP | $0.99 | per 7 days |
| PDF转换器Pro月会员 | $3.99 | per month |
| Weekly PDF Premium | $7.99 | per 7 days |
| PDF转换器Pro年会员 | $12.99 | per year |
| Monthly PDF Premium | $12.99 | per month |
| Annual PDF Premium | $29.99 | per year |


## Frequently asked questions

### Is pdf转换器 free?

pdf转换器 is free to download, with in-app purchases available.

### Is PDF Master free?

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

### Do pdf转换器 or PDF Master have ads?

Neither pdf转换器 nor PDF Master shows ads.

### Which is updated more often, pdf转换器 or PDF Master?

pdf转换器 ships an update every 2 weeks, and PDF Master every 15 months. Most recently, pdf转换器 was updated on September 18, 2026 and PDF Master on May 17, 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.*