# PDFOne vs PreviewMD

The clearest difference is price: PreviewMD at Free against PDFOne's $3.99. On ads, in-app purchases, device support and iOS requirement there is nothing between them.

PreviewMD is free to download; PDFOne costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | PDFOne | PreviewMD |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 days | — |
| Size | 9 MB | 7 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [ANTONIO PADALINO](https://appshunter.io/developer/6798513902) | [Michal Fanta](https://appshunter.io/developer/6787018314) |

## What reviewers say

### PDFOne

[App page](https://appshunter.io/ios/app/pdfone/id6806627749)

**In-app purchases:** none


### PreviewMD

[App page](https://appshunter.io/ios/app/previewmd/id6807862054)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is PDFOne free?

PDFOne costs $3.99, with no in-app purchases.

### Is PreviewMD free?

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

### Do PDFOne or PreviewMD have ads?

Neither PDFOne nor PreviewMD shows ads.

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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.*