To scan a QR code just open the app, point the camera at the QR Code, and you're done! There is no need to take a photo . QR Code Reader will automatically recognize any QR code your camera is pointing at and will show you the result and you can either copy the result or open the result on web . If the result after scan is an url it will open the url link and if the result is any word then it will perform google search automatically .