You will be able to scan the bar code of a item and it will automatically display the best price for you in google shopping. It will automatically display the price from lowest to highest. This can be especially handy when you are in a store you can scan the item to see if you can get it cheaper online instead of in a physical store. By using this app you are giving the program permission to use your phone's location to find the best possible price in nearby stores as well. This will work for bar codes and QR codes. To scan a bar code hold your phone sideways and with camera on the left hand side to scan. To scan a QR code hold the phone up and down with the camera on top to scan. Since this is a paid app it is ad free.