# PDF Expert Viewer vs Document Scanner

The clearest difference is in-app purchases: PDF Expert Viewer at none against Document Scanner's 4. Document Scanner's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Document Scanner sells 4 in-app purchases, starting at $1.99 per 7 days. PDF Expert Viewer asks for nothing beyond the download.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on September 24, 2026 and September 1, 2026 respectively.

## The numbers

| Metric | PDF Expert Viewer | Document Scanner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (5 ratings)](https://appshunter.io/ios/app/document-scanner-pdf-editor/id6747021798/reviews)** |
| Number of ratings | — | **5** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Weekly | Weekly |
| Monetization | — | Free with in-app purchases |
| Size | 64 MB | 168 MB |
| Requires iOS | 15 | **14.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Chengdu Doudou Oasis Network Technology Co.,Ltd](https://appshunter.io/developer/1776078126) | [Mai Duc Sang](https://appshunter.io/developer/1819434989) |

## What reviewers say

### PDF Expert Viewer

[App page](https://appshunter.io/ios/app/pdf-expert-viewer/id6746780454)

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

**In-app purchases:** none


### Document Scanner

[App page](https://appshunter.io/ios/app/document-scanner-pdf-editor/id6747021798)

Easily scan, convert, and edit all your PDF files on mobile. Turn paper documents into high-quality PDFs, sign contracts, and secure your files with passwords. Organize, view, and share documents efficiently.

**Highlights:** Scan and convert documents to PDF, Smart ID and document scanning, Edit, sign, and secure PDFs, Organize, view, and share files, Image to PDF conversion, Password protection for PDFs

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $1.99 | per 7 days |
| Weekly Premium | $6.99 | per 7 days |
| Weekly Premium | $6.99 | per 7 days |
| Yearly Premium | $9.99 | per year |


## Frequently asked questions

### Is PDF Expert Viewer free?

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

### Is Document Scanner free?

Document Scanner is free to download, with in-app purchases available.

### Do PDF Expert Viewer or Document Scanner have ads?

PDF Expert Viewer shows ads; Document Scanner does not.

### Which is updated more often, PDF Expert Viewer or Document Scanner?

PDF Expert Viewer ships an update weekly, and Document Scanner weekly. Most recently, PDF Expert Viewer was updated on September 24, 2026 and Document Scanner on September 1, 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.*