Your smartphone already carries a capable barcode and QR code scanner, tucked into tools you probably open every day. With a couple of taps, you can turn the camera ...

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.

Scan QR codes faster with these tips. Image: D. Griffin Jones/Cult of Mac You can scan a QR code directly from your iPhone — you don’t need to download a third ...