iPhone users can scan documents and QR codes on their device using the built-in Notes and Camera apps. To scan a document in the iPhone's Notes app, open a new or existing note, then tap the "+" icon ...

QR codes — or "Quick Response" codes — are square-shaped barcodes that can be scanned by mobile devices. They are used for a variety of applications, from pulling up a restaurant menu to directing ...

QR codes are cool, but they haven't quite caught on en masse yet, because finding cool uses for them have been challenging. One popular use for QR codes is printing them on business cards. Sharon ...