# PDF Reader Pro Edition® vs KeyTray

The clearest difference is rating: KeyTray at 5.0 against PDF Reader Pro Edition®'s 4.4. KeyTray also leads on in-app purchases (none vs 3) and update cadence (every 9 days vs every 4 months). PDF Reader Pro Edition®'s advantage is ratings volume (1.7K vs 1). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. PDF Reader Pro Edition® sells 3 in-app purchases, starting at $3.99 per month. KeyTray asks for nothing beyond the download.

KeyTray holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: PDF Reader Pro Edition® has 1.7K ratings behind it against 1, so its average is the more settled of the two.

PDF Reader Pro Edition® ships an update every 4 months, KeyTray every 9 days. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | PDF Reader Pro Edition® | KeyTray |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (1.7K ratings)](https://appshunter.io/ios/app/pdf-reader-pro-edition/id364502063/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/keytray/id6461772729/reviews)** |
| Number of ratings | **1.7K** | 1 |
| Positive reviews | 53.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 9 days** |
| Monetization | Paid | **Free** |
| Size | 137 MB | 15 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [iTECH DEVELOPMENT SYSTEMS INC.](https://appshunter.io/developer/298779208) | [SoftControl Enterprise Inc.](https://appshunter.io/developer/1514621605) |

## What reviewers say

### PDF Reader Pro Edition®

[App page](https://appshunter.io/ios/app/pdf-reader-pro-edition/id364502063)

This powerful application allows users to read, manage, edit, and annotate PDF files on iOS devices. It offers real-time online collaboration, form filling, and advanced annotation tools. Create, organize, and secure your PDF documents with ease.

**Highlights:** Real-time online collaboration and chat, Fillable PDF forms, Extensive annotation tools (highlight, notes, signature), EasyReview mode for text markup, Create new PDF files, Secure Vault folder, Built-in scanner

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro & AI-Powered Tools (1 Month) | $3.99 | per month |
| PDF Reader Pro Edition Loyalty | $9.99 | per year |
| Pro & AI-Powered Tools (1 Year) | $24.99 | per year |

**What reviewers like**

- 🚀 Fast and easy to use
- 📁 Good file organization and management
- ✍️ Useful annotation and highlighting tools
- 🔒 Secure document storage

**What reviewers complain about**

- 🐛 Crashes and stability issues
- 🔍 Poor search functionality
- 📤 Difficulty sharing/exporting annotated files
- 🤔 Unintuitive user interface

**Reported bugs**

- App crashes when opening certain PDF files
- Annotations disappear or fail to save
- Compatibility issues with newer iOS versions
- Slow performance on older iPad models

**Requested features**

- Add support for password-protected PDFs
- Improve annotation tools with better undo/redo
- Implement cloud storage integration (Dropbox, iCloud, etc.)
- Add ability to insert, delete, and rearrange PDF pages


### KeyTray

[App page](https://appshunter.io/ios/app/keytray/id6461772729)

This comprehensive ERP system streamlines business operations and provides data-driven insights. It revolutionizes how companies manage processes and data through an integrated platform.

**Highlights:** Comprehensive ERP solution, Streamlined operations, Data-driven insights, Integrated business management, Revolutionary process management

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

**In-app purchases:** none


## Frequently asked questions

### Is PDF Reader Pro Edition® free?

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

### Is KeyTray free?

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

### Which has better reviews, PDF Reader Pro Edition® or KeyTray?

KeyTray is rated higher. PDF Reader Pro Edition® averages 4.4 out of 5 from 1.7K ratings, while KeyTray averages 5.0 from 1 ratings.

### Do PDF Reader Pro Edition® or KeyTray have ads?

Neither PDF Reader Pro Edition® nor KeyTray shows ads.

### Which is updated more often, PDF Reader Pro Edition® or KeyTray?

PDF Reader Pro Edition® ships an update every 4 months, and KeyTray every 9 days. Most recently, PDF Reader Pro Edition® was updated on October 27, 2026 and KeyTray on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*