Google have combined a bunch of there apps and integrated them very nicely in Google Shopper. Yes there are other barcode scanning apps on Android but none of them are quite like this one.
Google Shopper, a hybrid tool allowing you to find anything you want or search for it cheaper when you can while shopping in-store. Besides the ability to scan barcodes on items you can now scan a picture of an item to get results. Sounds like Google's Goggles don't it? You can also speak the name of the product you’re looking for and Google will try and find what you’re looking for. With heavy competition in the barcode scanning arena it will be interesting to see what Google has in store to set this apart from the others.