# PDF Master vs All in One PDF

The clearest difference is update cadence: All in One PDF at every 2 weeks against PDF Master's every 15 months. PDF Master's advantage is iOS requirement (15.0 vs 18.4). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. PDF Master sells 6 in-app purchases, starting at $0.99 per 7 days and All in One PDF sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

PDF Master ships an update every 15 months, All in One PDF every 2 weeks. The most recent releases landed on November 3, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | PDF Master | All in One PDF |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pdf-master-reader-and-converter/id1645087890/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 8 MB | 10 MB |
| Requires iOS | **15.0** | 18.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [程 张](https://appshunter.io/developer/1523996955) | [Pochang Chen](https://appshunter.io/developer/1479221176) |

## What reviewers say

### PDF Master

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

Transform your mobile device into a powerful PDF editor and scanner. Convert various file types to PDF, edit documents, add signatures, merge files, and secure sensitive information with passwords. Enjoy on-device processing for enhanced privacy.

**Highlights:** Convert Word, Excel, PowerPoint, and images to PDF, Scan documents with OCR for searchable text, Edit, comment, and e-sign PDFs, Merge and split PDF files, Compress documents, Password protect sensitive files, On-device processing for privacy

**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 |


### All in One PDF

[App page](https://appshunter.io/ios/app/all-in-one-pdf/id6744743906)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AI Text Removal Credits (10) | $0.99 | one-time |
| AI Text Removal Credits (50) | $3.99 | one-time |
| AI Text Removal Credits (200) | $9.99 | one-time |


## Frequently asked questions

### Is PDF Master free?

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

### Is All in One PDF free?

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

### Do PDF Master or All in One PDF have ads?

Neither PDF Master nor All in One PDF shows ads.

### Which is updated more often, PDF Master or All in One PDF?

PDF Master ships an update every 15 months, and All in One PDF every 2 weeks. Most recently, PDF Master was updated on November 3, 2026 and All in One PDF on October 14, 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.*