PriceOn is an excellent app to compare prices on your mobile device, shop for deals, browse related products, save your favorite items, and share sales with friends. Comparing items is easy. Just tap the Camera button at the bottom of the screen, put the barcode in the onscreen box, and you'll be provided with all local retailers that sell the item. You can also use the search tool to look for a specific product if you don't have the barcode.