Barcode Scanner - a code scanner on product boxes. But why do you need it, you may ask? It's needed to find out a lot of interesting things about the product you are buying: for example, to know its price over time or to find detailed information about it. It will also help you compare prices of the same product from various online stores, such as Amazon or Ebay. The application works with almost everything: from games to movies, from shoes to jewelry.