The fastest QR code and bar code scanner available is the QR & Barcode Scanner app. Every Android device has to have the QR & Barcode Scanner as a QR reader.
The QR & Barcode Scanner / QR code reader is really simple to use; with rapid scan built-in, just point the free QR code scanner app at the barcode or QR 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.
Many forms of QR codes and barcodes, including text, URLs, ISBNs, products, contacts, calendars, emails, locations, Wi-Fi, and many more, may be read by a QR and barcode scanner. Following scanning and automatic decoding, the user is presented with only the pertinent options for each specific QR or Barcode type, allowing them to proceed as necessary. You can also scan coupons or coupon codes with a QR or barcode scanner to get discounts and make some savings.
The barcode scanner app for Android also functions as a QR code generator. It’s quite simple to use a QR generator; just enter the information you want on the QR code and press the generation button.