Barcode is the specially designed code which specifies product code and details.Whenever we go to supermarkets, shopping malls, eac unique product having each unique specific code.It specially scans the code and gives the product code as well as cost of the product.But in recent barcode scanners are not perfect.It is giving just product no.only.It does not provide any type of information about product and cost or other details.REcently mobiles also supporting barcode scanners.But they are not useful.It is useless.When we scan the aadhar barcode, it just giving he aadhar card no.and garbage information.There is lot of garbage values in it.In shopping mall barcode scanners are very effiicient and perfect.But those are costly.In google also having barcode scanners as well as product details scanners.Some are really uszeful and some are useless.dont trust those fake scanners.Quickscanner is of the barcode scanner which wasx very effiicient and nice one.