android qr code scan. A QR code (quick response code) is a two-dimensional barcode that can be scanned with a smartphone. QR codes are used to store information such as URLs, contact info, or calendar entries. When scanned, the QR code reader software on the smartphone will automatically open the designated URL, save the contact information, or add the calendar event.
What is a QR Code Reader?
A QR code reader is an app that can be used to decode and display the contents in a QR code. Since there are many different types of QR codes, each with different uses, not all readers are capable of reading every type of code. There are three types of QR code readers: Android, iPhone, and Windows Phone. Each type has a different purpose and function.