# PDF Converter vs DocOne Express

The clearest difference is price: PDF Converter at Free against DocOne Express's $8.99. DocOne Express's advantage is update cadence (every 4 weeks vs every 6 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

PDF Converter is free to download; DocOne Express costs $8.99 up front. Neither carries in-app purchases, so what you see is what you pay.

PDF Converter ships an update every 6 months, DocOne Express every 4 weeks. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | PDF Converter | DocOne Express |
| --- | --- | --- |
| Price | **Free** | $8.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 4 weeks** |
| Size | 3 MB | 7 MB |
| Requires iOS | **16.6** | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [振训 池](https://appshunter.io/developer/1727238431) | [ANTONIO PADALINO](https://appshunter.io/developer/6798513902) |

## What reviewers say

### PDF Converter

[App page](https://appshunter.io/ios/app/pdf-converter-scan-and-ocr/id6758910404)

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

**In-app purchases:** none


### DocOne Express

[App page](https://appshunter.io/ios/app/docone-express/id6800257286)

**In-app purchases:** none


## Frequently asked questions

### Is PDF Converter free?

PDF Converter is free to download, with no in-app purchases.

### Is DocOne Express free?

DocOne Express costs $8.99, with no in-app purchases.

### Do PDF Converter or DocOne Express have ads?

Neither PDF Converter nor DocOne Express shows ads.

### Which is updated more often, PDF Converter or DocOne Express?

PDF Converter ships an update every 6 months, and DocOne Express every 4 weeks. Most recently, PDF Converter was updated on October 25, 2026 and DocOne Express on October 31, 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.*