# PDF Reader Pro for Document vs S2M

The clearest difference is in-app purchases: S2M at none against PDF Reader Pro for Document's 2. S2M also leads on ads (none vs shown) and iOS requirement (13.0 vs 15.6). On price, update cadence and device support there is nothing between them.

Both are free to download. PDF Reader Pro for Document sells 2 in-app purchases, starting at $6.99 per month. S2M asks for nothing beyond the download.

PDF Reader Pro for Document ships an update every 3 weeks, S2M monthly. The most recent releases landed on October 9, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | PDF Reader Pro for Document | S2M |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (367 ratings)](https://appshunter.io/ios/app/pdf-reader-pro-for-document/id1548604990/reviews)** | — |
| Number of ratings | **367** | — |
| Positive reviews | 86.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Ad-supported | — |
| Size | 73 MB | 44 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Fan Technology Limited](https://appshunter.io/developer/1503499100) | [SICOGES](https://appshunter.io/developer/1630980850) |

## What reviewers say

### PDF Reader Pro for Document

[App page](https://appshunter.io/ios/app/pdf-reader-pro-for-document/id1548604990)

This app provides a fast and secure way to view PDF documents on your mobile device. It allows you to open and read PDFs, access scanned documents, and share files in various formats like PDF and Word.

**Highlights:** View PDF documents, Access scanned PDFs, Share as PDF/Word, Reading mode, Upload documents

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PDF Reader Pro Monthly | $6.99 | per month |
| PDF Reader Pro Yearly | $39.99 | per year |

**What reviewers like**

- 👍 Easy to use and intuitive interface
- 💰 Completely free with no hidden costs or subscriptions
- 🚀 Fast and reliable performance
- 📄 Handles large files and catalogs well
- ✨ No bloatware or unnecessary features

**What reviewers complain about**

- 🐛 Crashes and freezes frequently
- ❌ Cannot open or read PDF files in some cases
- 🚫 Cannot delete files easily
- 📱 No landscape mode support
- 🎨 Barebones UI with limited customization

**Reported bugs**

- App crashes and freezes during use
- Cannot open downloaded PDF files
- File deletion not working properly
- Does not save last opened page
- Poor performance on small phone screens

**Requested features**

- Add landscape mode orientation
- Implement font size adjustment options
- Add page number search functionality
- Save last opened page position
- Add PDF editing capabilities


### S2M

[App page](https://appshunter.io/ios/app/s2m/id6745101167)

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

**In-app purchases:** none


## Frequently asked questions

### Is PDF Reader Pro for Document free?

PDF Reader Pro for Document is free to download, with in-app purchases available.

### Is S2M free?

S2M is free to download, with no in-app purchases.

### Do PDF Reader Pro for Document or S2M have ads?

PDF Reader Pro for Document shows ads; S2M does not.

### Which is updated more often, PDF Reader Pro for Document or S2M?

PDF Reader Pro for Document ships an update every 3 weeks, and S2M monthly. Most recently, PDF Reader Pro for Document was updated on October 9, 2026 and S2M on September 25, 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.*