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 ...

You can use your iPhone to scan documents, QR codes, and other files using the Notes app and your camera.

Google is rolling out an update to Quick Share which aims to streamline the sharing experience by adding QR codes, while Google Drive is improving document scans. Quick Share, formerly known as Nearby ...

You can add new contacts to WhatsApp manually from the Chats tab or you can scan someone's QR code within the app.