It is the easiest way to pass information to someone via your mobile device. You simply show them your QR code and they scan it. Sure you can add the QR code to your business card, but why? The latest version of IOS and Android support scanning QR codes. For IOS, simply open your camera on your iPhone and point it at the QR code. For Android, press and hold the home button. Then tap Lens and point your device at the QR code. If you have trouble follow this link for full instructions HelloTech How to Scan QR Codes