Ever wonder what those weird black-and-white square codes are? Here's how to read them with an iPhone, a BlackBerry, or an Android smartphone.

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 ...

If, for whatever reason, you can’t figure out how use your phone’s built-in QR reader, there are many free easy-to-use QR code reader apps available for iOS and Android.

Your Android or iPhone can probably already scan QR codes. Here's how to do it no matter what phone you have.

QR codes are easy to use, if you know how to access the information they contain and have an internet connection.

With contactless interactions more common than ever, there is more of a need to read a QR code than ever. Here's how to read QR codes using your iPhone, iPad, or iPod touch.