Barcode & QR Code Scanner - A free app which allow to read and generate barcodes for Android.
QuickMark - QuickMark makes everything possible.
QR Droid - QR Droid Zapper
ConnectUpz - Helping service businesses to connect and grow your customer base by becoming part of of a larger ecosystem.
Obsqr - obsqr is an open-source, fast and lightweight QR scanner for Android.
Simple QR - Simple QR, a simple and lightweight app to scan, create and store QR codes. - GitHub - tomfong/simple-qr: Simple QR, a simple and lightweight app to scan, create and store QR codes.