# PDF Reader Pro vs One Scan

The clearest difference is review sentiment: PDF Reader Pro at 64% against One Scan's 26%. PDF Reader Pro also leads on iOS requirement (13.0 vs 26.0). One Scan's advantage is ads (none vs shown) and rating (4.7 vs 4.4). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. PDF Reader Pro sells 6 in-app purchases, starting at $39.99 per year and One Scan sells 10 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

One Scan holds the better App Store score, 4.7 against 4.4. That said, the two scores are not equally well evidenced: One Scan has 12K ratings behind it against 437, so its average is the more settled of the two. Written reviews complicate that: 64% of PDF Reader Pro's written reviews are positive against 26% of One Scan's, so the app with the better star average is not the one people write more warmly about.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 22, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | PDF Reader Pro | One Scan |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (437 ratings)](https://appshunter.io/ios/app/pdf-reader-pro-lite-edition/id919472509/reviews) | **[4.7 (12K ratings)](https://appshunter.io/ios/app/one-scan-pdf-doc-scanner/id1450144832/reviews)** |
| Number of ratings | 437 | **12K** |
| Positive reviews | **63.7% of reviews** | 26.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free with in-app purchases | Freemium |
| Size | 194 MB | 40 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [PDF Technologies, Inc.](https://appshunter.io/developer/1263126485) | [App Rover](https://appshunter.io/developer/1448355489) |

## What reviewers say

### PDF Reader Pro

[App page](https://appshunter.io/ios/app/pdf-reader-pro-lite-edition/id919472509)

This app offers comprehensive tools for managing PDF documents on mobile devices. It allows users to read, edit text and images, annotate, fill forms, convert to various formats, compress files, and perform OCR. Organize, protect, and share your PDFs with ease.

**Highlights:** Read PDFs with multiple viewing options, Edit PDF text and images, Annotate with highlights, notes, and drawings, Fill out PDF forms, Convert PDFs to Word, Excel, and other formats, Perform OCR on PDFs, Compress PDF file sizes

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Add 2-Device · Advanced Annual | $39.99 | per year |
| Add Devices · Advanced Annual | $49.99 | per year |
| PDF Pro · Advanced Annual | $79.99 | per year |
| PDF Pro · AI Annual | $79.99 | per year |
| Permanent License | $24.99 | one-time |
| PDF Pro · Advanced Permanent | $39.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 🚀 Fast and efficient
- 💡 Useful features like highlighting and annotating
- 👍 Great for reading and studying PDFs

**What reviewers complain about**

- 🐛 Crashes and bugs
- 🔒 Security issues with locked files
- 💰 Expensive upgrade to unlock full functionality
- 🤖 Poor customer support and unresponsive developers

**Reported bugs**

- Annotations not saving or displaying correctly
- App crashing when trying to convert or edit PDFs
- Syncing issues between devices
- Unexpected password locks on files

**Requested features**

- Undo/redo functionality for annotations
- More font and theme options
- Improved compatibility with cloud storage services
- Better support for older devices


### One Scan

[App page](https://appshunter.io/ios/app/one-scan-pdf-doc-scanner/id1450144832)

Easily scan, convert, and sign documents from your device. Organize your business and personal files with features like auto-detection, flash, and folder management. Edit, e-sign, and share your scanned documents quickly and efficiently.

**Highlights:** Scan documents with auto-detection, Convert to PDF instantly, E-sign and paraph files, Organize with folders and search, Share via email and text, Import files from cloud storage

**Features:** Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium Pass | $3.99 | per 7 days |
| Weekly Premium Pass | $5.99 | per 7 days |
| Scanner Premium Pass | $7.99 | per 7 days |
| Monthly Premium Pass | $9.99 | per month |
| Monthly Premium Pass | $9.99 | per month |
| Annual Premium Pass | $29.99 | per year |
| Annually Premium Pass | $49.99 | per year |
| Yearly Premium Pass | $49.99 | per year |
| Yearly Premium Pass. | $49.99 | per year |
| Annually Premium Pass | $59.99 | per year |

**What reviewers like**

- 🚀 Fast and easy to use
- 📸 Excellent image quality
- 💾 Convenient document storage

**What reviewers complain about**

- 🐛 Crashes and stability issues
- 💰 Expensive subscription model
- 🔒 Difficulty cancelling subscription

**Reported bugs**

- App freezes and becomes unresponsive
- Scans not saving properly
- Subscription charges continue even after cancellation

**Requested features**

- Free tier with limited scans
- Ability to export scans to cloud storage
- Better customer support and communication


## Frequently asked questions

### Is PDF Reader Pro free?

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

### Is One Scan free?

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

### Which has better reviews, PDF Reader Pro or One Scan?

One Scan is rated higher. PDF Reader Pro averages 4.4 out of 5 from 437 ratings, while One Scan averages 4.7 from 12K ratings.

### Do PDF Reader Pro or One Scan have ads?

PDF Reader Pro shows ads; One Scan does not.

### Which is updated more often, PDF Reader Pro or One Scan?

PDF Reader Pro ships an update every 2 months, and One Scan every 2 months. Most recently, PDF Reader Pro was updated on September 22, 2026 and One Scan 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.*