QR Code KIT - Formerly known as uQR.me, QR Code KIT is the strongest, most reliable QR code solution – the only one you'll ever need.
qurify - Online QR Code generator with some advanced settings and print queue.
BarCodeWiz OnLabel - Barcode and QR Code and Barcode
ZXing Project QR Code Generator - Generate QR Codes.
CodeREADr - A smart barcode scanner app for fast barcode scanning with the device camera or accessory. Create barcode scanning workflows and sync data in the cloud.
Kaywa QR Code - Kaywa QR Code is a QR-Code Generator.