This app allows you to scan bar codes for the product you want to buy from Amazon. You can use it for any use case, but mainly for Amazon order confirmation, Amazon returns, or any places where you need to collect a tracking number. 

To scan a bar code, you need to have a scanner (barcode scanner). The app is provided with a lot of presets, which you can easily use on your device. You can also add other data to your packing slips, so you can get more details about the product or the price.