QR Scanner is the best and fastest QR code and barcode scanner app free for Android devices. By using the phone's camera, this app will automatically scan and recognize the information of QR code or barcode. The app supports all major types of barcode and QR code formats, including text, url, product, contact, ISBN, calendar, email, location, Wi-Fi and more. It’s also a QR code generator that allows users to create QR code and save it to Gallery or Album.