Recently [mit41301] wondered about increasing the data capacity of QR codes, and was able to successfully triple the number of bits using color. He chose the new rectangular micro QR code (rMQR ...

The app I use is Trend Micro QR Scanner. It's a very simple QR code scanner that requires no additional subscription or ...

If the QR code claims to lead you to download an app, make sure it leads you to the real Google Play or Apple ... For example ...