Barcode scanning apps let you scan a barcode (either EAN-13 or UPC), and it searches the internet (on leading database sites such BarcodesDatabase.org, Gepir.org, Amazon.com, UPCdatabase.org and various others) and then returns product information for that particular barcode. It’s a quick, easy and precise way to get information about a product purely from the barcode. These apps are easily downloadable onto your smartphone. The app that most people tend to use is Zebra Barcode Scanner which can be downloaded from iTunes for Apple devices and Google Play for Android devices.