In a growing number of states, you can add your ID to Apple Wallet. We take a look at how to add them, how they work, what the limitations are, and what they can do.

This Quick Share-like app has recently received an update that adds support for sending files from a Mac to an Android with QR codes ...

Ever wondered how a QR code works? I built one from scratch to see the process up close and uncover the magic behind the ...