# PDF Reader Pro vs One Scan

The clearest difference is price: One Scan at Free against PDF Reader Pro's $19.99. One Scan also leads on ads (none vs shown) and rating (4.7 vs 4.3). PDF Reader Pro's advantage is review sentiment (69% vs 26%) and chart position (#90 vs unranked). On update cadence, in-app purchases, monetization model and device support there is nothing between them.

One Scan is free to download; PDF Reader Pro costs $19.99 up front. PDF Reader Pro sells 4 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 4.3. That said, the two scores are not equally well evidenced: One Scan has 12K ratings behind it against 222, so its average is the more settled of the two. Written reviews complicate that: 69% 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. Both last shipped on September 24, 2026.

## The numbers

| Metric | PDF Reader Pro | One Scan |
| --- | --- | --- |
| Price | $19.99 | **Free** |
| Rating | [4.3 (222 ratings)](https://appshunter.io/ios/app/pdf-reader-pro-signedit-pdf/id883101890/reviews) | **[4.7 (12K ratings)](https://appshunter.io/ios/app/one-scan-pdf-doc-scanner/id1450144832/reviews)** |
| Number of ratings | 222 | **12K** |
| Positive reviews | **68.8% 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 |
| Best chart rank | **#90** | — |
| Size | 180 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-signedit-pdf/id883101890)

**Currently charting:** #90 Top Paid · Business (US App Store)

This app allows users to read, edit, annotate, sign, convert, and fill out PDF documents on their mobile devices. It offers features like text editing, image modification, page management, and OCR capabilities, making it a comprehensive tool for PDF management.

**Highlights:** Edit PDF text and images, Annotate with highlights, notes, and drawings, Sign PDFs with custom signatures, Convert PDFs to Word, Excel, and more, Fill out interactive PDF forms, OCR scanned documents, Merge, split, and reorder PDF pages

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Add 2-Device · Advanced Annual | $39.99 | per year |
| Add Devices · Advanced Annual | $49.99 | per year |
| PDF Pro · AI Annual | $79.99 | per year |
| Convert PDF to Office Pack | $9.99 | one-time |

**What reviewers like**

- 👍 User-friendly
- 🚀 Efficient file management
- 💡 Useful annotation tools
- 👍 Seamless cloud integration
- 🚀 Fast performance

**What reviewers complain about**

- 🐛 Crashes and stability issues
- 🔒 Unreliable security features
- 💡 Limited text editing capabilities
- 🐛 Conversion issues (PDF to Word)
- 💡 Missing merge/reorder PDF functions

**Reported bugs**

- Corrupted PDF files after updates
- Disappearing files and loss of organization
- Compatibility issues with newer iOS versions
- Unreliable PDF form filling
- Unexpected app crashes

**Requested features**

- Add undo/redo functionality
- Improve OCR accuracy
- Introduce password protection for PDFs
- Allow custom folder colors
- Enhance browser integration (history, new tabs)


### 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 costs $19.99, and also offers in-app purchases.

### 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 4.3 out of 5 from 222 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 24, 2026 and One Scan on September 24, 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.*