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.

Scanning a QR code with your phone is a common request, and should be simple, right? But it's not always as obvious how to do it as it should be. Read on for straightforward, illustrated instructions ...

Add Yahoo as a preferred source to see more of our stories on Google. QR codes, short for Quick-Response codes, are pretty neat. You scan the code using your device's camera, which picks up embedded ...