The quickest barcode and QR code scanner app available is called QRflow. Every Android device has to have the QR & Barcode Scanner as a QR reader.

The QRflow - QR Code Scanner / QR code reader is very simple to use; with quick scan built in, just point the free QR code scanner app at the barcode or QR code you wish to scan, and the QR scanner will begin scanning it immediately. As the barcode reader operates automatically, there is no need to touch any buttons, snap images, or change the zoom.

QR codes are widely used. To scan a barcode or a QR code while you're on the go, download the QRflow app. The only free QR code scanner app you will ever require is the Barcode & QR Scanner software. Use pinch to zoom or the torch to scan QRs in the dark or from a distance.

Additionally, you can scan product barcodes using a barcode reader app. To save money, scan barcodes with a barcode scanner in stores and compare them to online prices. The only free QR code reader and barcode scanner you will ever need is the QR & Barcode Scanner app.

Other features of a QR code reader or scanner include the ability to create QR codes, scan QRs from images or the gallery, share contact information via QRs, share images for other apps to scan, create QRs from content copied to the clipboard, modify the app's theme or colour, and use dark mode.