Your smartphone is full of surprises. There's an app if you want to use your phone as a magnifying glass or scanner. Tap or click here for hidden apps on your smartphone and how to find them.

I am going to walk through how to unlock that hidden scanner in seconds on both iPhone and Android, then show practical ways to use it for shopping, travel, work, and security. Once you know where to ...

A big-time Google upgrade could put an end to the struggle of scanning a QR code from a long way away. Whether it's across the room on a wall or across the highway on a billboard, a new scanner ...