A free program for Android, by SOFTDX.

What is QR code?

It is a kind of matrix barcode that contains information about the item to which it is attached. 

It is like a regular barcode, but with more information, and it is used for many purposes. It is used to link to another web page, to call a phone number, to open a URL, to share a contact, or to check the current time. 

It is used to find out more information about the item, to find the best deals, to order a product, to reserve a seat, to find a place to stay, or to check the price of an item.