# ZEN PDF PRO vs QR Code Master

The clearest difference is review sentiment: QR Code Master at 72% against ZEN PDF PRO's 21%. QR Code Master also leads on rating (4.4 vs 4.1) and chart position (#83 vs unranked). ZEN PDF PRO's advantage is in-app purchases (none vs 5) and iOS requirement (14.0 vs 17.0). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. QR Code Master sells 5 in-app purchases, starting at $9.99 per 7 days. ZEN PDF PRO asks for nothing beyond the download.

QR Code Master holds the better App Store score, 4.4 against 4.1. Both are backed by a comparable volume of ratings — 1.5K and 1.7K respectively. Written reviews point the same way: 21% of ZEN PDF PRO's written reviews are positive against 72% of QR Code Master's.

ZEN PDF PRO ships an update fortnightly, QR Code Master weekly. The most recent releases landed on September 21, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | ZEN PDF PRO | QR Code Master |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (1.5K ratings)](https://appshunter.io/ios/app/zen-pdf-pro/id6450250043/reviews) | **[4.4 (1.7K ratings)](https://appshunter.io/ios/app/qr-code-master-scan-and-maker/id6737916371/reviews)** |
| Number of ratings | 1.5K | **1.7K** |
| Positive reviews | 21.4% of reviews | **71.5% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Weekly** |
| Monetization | **Free** | Freemium |
| Best chart rank | — | **#83** |
| Size | 46 MB | 16 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [EINMOB LIMITED](https://appshunter.io/developer/1692475934) | [Tiki Media LTS](https://appshunter.io/developer/1778498969) |

## 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


### QR Code Master

[App page](https://appshunter.io/ios/app/qr-code-master-scan-and-maker/id6737916371)

**Currently charting:** #83 Top Grossing · Utilities (US App Store)

Instantly scan and create QR codes and barcodes with this powerful toolkit. It offers fast, reliable scanning even in challenging conditions and allows for the generation of custom codes for various data types. Enjoy a private and secure experience with features like history logging and batch scanning.

**Highlights:** Lightning-fast QR code scanning, Create custom QR codes (URLs, text, vCards), Wi-Fi network connection via QR code, Batch scanning for multiple codes, Scan from gallery images, Supports all major QR and barcode formats, History log and flashlight support

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $9.99 | per 7 days |
| Weekly Subscription | $9.99 | per 7 days |
| master trial weekly 12 | $11.99 | per 7 days |
| Yearly Subscription | $59.99 | per year |
| Yearly Subscription Trial | $59.99 | per year |

**What reviewers like**

- 👍 Great QR Code Master
- 💡 Option
- 👍 Works very well
- 👍 Positive vibes 2025
- 👍 Response to camera!

**What reviewers complain about**

- 🐛 Can't read the pamphlet
- 🐛 Terrible my qr reader on my iPhone works fine except for your registration  sticker
- 🐛 Can't get in
- 🐛 Beware - Not free as stated, billed via Apple
- 🐛 Malpractice from this   Scheme, want to cancel and return device

**Reported bugs**

- Login screen freezes
- Incompatible with older devices

**Requested features**

- Dark mode option
- Advanced analytics dashboard


## Frequently asked questions

### Is ZEN PDF PRO free?

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

### Is QR Code Master free?

QR Code Master is free to download, with in-app purchases available.

### Which has better reviews, ZEN PDF PRO or QR Code Master?

QR Code Master is rated higher. ZEN PDF PRO averages 4.1 out of 5 from 1.5K ratings, while QR Code Master averages 4.4 from 1.7K ratings.

### Do ZEN PDF PRO or QR Code Master have ads?

Neither ZEN PDF PRO nor QR Code Master shows ads.

### Which is updated more often, ZEN PDF PRO or QR Code Master?

ZEN PDF PRO ships an update fortnightly, and QR Code Master weekly. Most recently, ZEN PDF PRO was updated on September 21, 2026 and QR Code Master on September 23, 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.*