TUNZE vs Useful QR Code Reader PRO
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
TUNZE
Control TUNZE devices like pumps and controllers from a central app. It offers analysis and maintenance features for marine aquariums, helping to stabilize water chemistry and technology for a healthy environment.
- Centralized device control
- Pump and controller management
- Intelligent accessory features
- Water chemistry analysis
- Maintenance tracking
- Marine aquarium companion
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With the TUNZE App, you can control your TUNZE devices centrally, clearly and at any time β whether itβs pumps, controllers or intelligent accessory features. At the same time, the app includes all proven analysis and maintenance features of the former Reef Assistant β now completely free! This makes TUNZE the complete companion for a stable, healthy and easily maintained marine aquarium. Our philosophy: Record values, correct them, stabilize them. Optimal water chemistry and reliable technology are the foundation of a successful reef aquarium. Legal Information Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Terms of Use: https://app.tunze.com/tunze/en/terms-of-use Privacy Policy: https://app.tunze.com/tunze/en/data-terms Imprint: https://app.tunze.com/tunze/en/imprint More information: https://app.tunze.com
Useful QR Code Reader PRO
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A convenient QR Code Reader app has been released! This app is an easy, simple, and fast QR code reading application. Additionally, it is a handy QR code reader app that records your scan history. After launching the app, grant camera access, hold your device over a QR code, and scan it. The scanned QR code will be displayed at the top of the main screen. Tap it to open the browser and view the URL, or long-press to copy it to the clipboard and use the text as needed. After launching, tap the "Load Image" button and grant access to your photo library. Then, load an image containing a QR code, such as a screenshot, and the app will scan the QR code within the image. (In some cases, it may fail to read due to errors.) β»The 'PRO' version is a paid version without ads. The app's functionality is the same as the free version. [How to Use] - Point the camera at a QR code on the initial screen to scan it. - The top right button on the screen transitions to the main screen but skips QR code scanning. - The top left button on the screen scans a QR code from an image in the photo library. - The scanned content is displayed at the top of the main screen. - Tap to open the browser. - Long-press to copy to the clipboard. - QR code scan history is displayed at the bottom of the screen. - Delete all history with "Delete All History." - You can delete history individually. - Tapping on history entries also opens the browser. - Long-pressing history entries copies them to the clipboard. - Tap the "I" in the top right to view information about the app. - Use the back arrow in the top left to return to the initial QR code scanning screen. That's how to use the app. It is a simple, convenient, and fast QR code reading app! Download and try it today!
Screenshots
Verdict
The clearest difference is price: TUNZE at Free against Useful QR Code Reader PRO's $2.99. Useful QR Code Reader PRO's advantage is ads (none vs shown) and update cadence (every 9 days vs every 2 months). On in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
TUNZE is free to download; Useful QR Code Reader PRO costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
TUNZE ships an update every 2 months, Useful QR Code Reader PRO every 9 days. The most recent releases landed on July 8, 2026 and September 20, 2026 respectively.
| Parameter | TUNZE | Useful QR Code Reader PRO |
|---|---|---|
| Price | Free β better | $2.99 |
| Positive reviews | 0.0% of reviews | β |
| Update frequency | Every 2 months | Every 9 days β better |
| Ads | Yes | No β better |
| In-app purchases | No | No |
| Monetization | Free with in-app purchases | β |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 β better | 15.6 |
| Further details β not scored | ||
| Size | 67 MB | 39 MB |
| Age rating | 4+ | 4+ |
| Developer | fynix GmbH | katapu.net |
In-app purchases
TUNZE
No in-app purchases
Useful QR Code Reader PRO
No in-app purchases





