QR code or bar code is modern technology to get product information with in a second through a scanning system. every product have a unique code which is indicate about the product type product price & all impotent information about the product, you just need a QR code scanner or computer, but if you have a smartphone with good camera, then you don’t need all of those because your smart phone work as a QR code reader you just need to install apps. However there are lots of QR code reader apps are available on google play store (quick barcode reader) you can easily download & all are free. The difference between quick barcode readers with other apps,
1st you can use front & rear both camera, where as other apps not support front camera.
2nd you can use flash light when you are in dark place, whereas flash light option not available other apps.
3rd you can also generate barcode from at text.
4th you can also scan 2d barcode easily.
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