QR Spy
The one and only free QR code iOS application.
Scan
Point your camera to QR code and discover what is inside! QRSpy shows not only conent, but also error correction level or length of the QR code content you scan.
Create
QRSpy let you create your own QR codes and specify not only content, but also error level correction and other QR code attributes.
Archive
All scanned or created QR codes are achived so that you can export, share or edit them later.
Widget
Application comes with iOS widget, which allows you to place your favourite QR code on your home screen.