Barcode OI Plugin - This is an extension for OI Shopping List and other compatible applications that lets you enter or check items by scanning them. It requires the ZXing Barcode Scanner to be installed.
Currently, UPC barcodes are automatically resolved through the Internet UPC database. European EAN codes are currently not yet supported
Barcode Reader- Use Barcode Reader to compare prices, find out more details about a product, or save search results for the future.
Just take a photo of any printed barcode with your Android smartphone and this app will show the lowest possible prices from the thousands of retailers online. Works with eBay, Amazon and Google Product search
Barcode Scanner Scans barcodes on CDs, books, and other products, then look up prices and reviews, or search for a word in a book and find where it occurs. You can also scan QR Codes containing URLs, contact info, calendar events, etc
Bargain Deal Alerts ( Best shopping deals and Coupons) tracks new deals across multiple sites selected by you from the list of more than 200 pre-defined channels and notifies you of any new bargain reported