As smartphones have become more and more ubiquitous, so have QR codes. These maze-looking squares are a type of matrix bar code that contains data — usually, QR codes point to a website or open a ...

QR or Quick Response codes are one of the most popular ways to access information on the go. Invented in 1994 and once considered the wave of the future, part of the QR code revival that started in ...

Now that Google is using the two-dimensional bar codes as part of its local businesses listings program, it's all the more reason for an app to help read them. CNET contributor Don Reisinger is a ...

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.