BarMaker

BarMaker can help you to create/scan QR Code or Barcode images or transfer contacts, location, clipboard and so on. You can use it to create/scan QR Code or Barcode. You can also push the result into Mac/PC browser after scanning and visit the Scanning Result from PC/Mac's browser. You can custom your QR Code or Barcode (like change color or embed an image on QR Code or add your custom text). Also you can create qr code from Safari by pressing share button to share url. It also supports scanning for white barcodes on black background.

BarMaker supports following formats:
QR Code
Code-39
Code-128
EAN-8
EAN-13
ITF
UPC-A
Codabar
PDF 417
Aztec
DataMatrix