Features: 1. Very fast 2. Very accurate and robust. 3. Many data type supported. 4. Enable flashlight for a darkness environment. How to use Quick Response app? - Install and launch Quick Response(Scanner) App. - Scan will be launched automatically. - Place QR Code to scan in the frame of camera. - Then, you will have the result of your QR Code. If you like this QR Code Reader app, please leave us a positive review.