Barcode & QR Code Scanner - A free app which allow to read and generate barcodes for Android.
Barcode Box - Records a list of barcodes when you scan them and reminds you if you've seen it before.
QuickMark - QuickMark makes everything possible.
JD Sports - JD Sports is a free shopping platform that design for those who want to buy sports products like trainers, apparel, equipment, and accessories.
QR Droid - QR Droid Zapper
ZXing - Barcode Scanner for Android