# ZEN PDF PRO vs PDF Reader

The clearest difference is rating: PDF Reader at 4.8 against ZEN PDF PRO's 4.1. PDF Reader also leads on review sentiment (61% vs 21%). ZEN PDF PRO's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, ratings volume, update cadence and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

PDF Reader holds the better App Store score, 4.8 against 4.1. Both are backed by a comparable volume of ratings — 1.5K and 3.2K respectively. Written reviews point the same way: 21% of ZEN PDF PRO's written reviews are positive against 61% of PDF Reader's.

ZEN PDF PRO ships an update fortnightly, PDF Reader weekly. The most recent releases landed on September 21, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | ZEN PDF PRO | PDF Reader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (1.5K ratings)](https://appshunter.io/ios/app/zen-pdf-pro/id6450250043/reviews) | **[4.8 (3.2K ratings)](https://appshunter.io/ios/app/pdf-reader-easy-editor/id6630367408/reviews)** |
| Number of ratings | 1.5K | **3.2K** |
| Positive reviews | 21.4% of reviews | **61.3% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | **Weekly** |
| Monetization | **Free** | Ad-supported |
| Size | 46 MB | 70 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [EINMOB LIMITED](https://appshunter.io/developer/1692475934) | [SPARK TECH LIMITED](https://appshunter.io/developer/1709259681) |

## What reviewers say

### ZEN PDF PRO

[App page](https://appshunter.io/ios/app/zen-pdf-pro/id6450250043)

Transform your phone into a portable scanner and professional document editor. Easily convert images to PDF, merge or split files, and enhance scanned documents with smart editing tools. Securely store and share your files with a minimalist, intuitive interface.

**Highlights:** Portable scanner, PDF editing, Image to PDF conversion, File merging and splitting, Smart image editing, Encrypted local storage, Direct PDF printing

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

**In-app purchases:** none


### PDF Reader

[App page](https://appshunter.io/ios/app/pdf-reader-easy-editor/id6630367408)

Transform your smartphone into a powerful PDF scanner and editor. Easily convert images and documents to PDF, or convert PDFs to other formats. Protect your files with encryption and share them securely.

**Highlights:** Scan documents, Convert images to PDF, Convert PDF to other formats, Crop image sizes, Share documents, Add watermark, File encryption

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

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 💡 Useful features
- 🚀 Fast performance

**What reviewers complain about**

- 🐛 Crashes and bugs
- 💰 Excessive ads
- 🔋 Drains battery quickly

**Reported bugs**

- Login issues
- Compatibility problems with newer devices
- Frequent crashes and freezes

**Requested features**

- More customization options
- Improved privacy controls
- Better customer support


## Frequently asked questions

### Is ZEN PDF PRO free?

ZEN PDF PRO is free to download, with no in-app purchases.

### Is PDF Reader free?

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

### Which has better reviews, ZEN PDF PRO or PDF Reader?

PDF Reader is rated higher. ZEN PDF PRO averages 4.1 out of 5 from 1.5K ratings, while PDF Reader averages 4.8 from 3.2K ratings.

### Do ZEN PDF PRO or PDF Reader have ads?

PDF Reader shows ads; ZEN PDF PRO does not.

### Which is updated more often, ZEN PDF PRO or PDF Reader?

ZEN PDF PRO ships an update fortnightly, and PDF Reader weekly. Most recently, ZEN PDF PRO was updated on September 21, 2026 and PDF Reader on September 22, 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.*