The most prominent use-case for QR codes is the area of mobile marketing. Because there is free QR code software to read QR codes for almost every smartphone with a camera (e.g. iPhone, Google Android, Blackberry, Symbian), QR codes are used as a link between offline media such as paper and websites. The user just needs to scan the code instead of typing long, unpleasant web addresses. However, a QR image can even be scanned and decoded with older mobile phone cameras and models without Internet access as QR code readers are available for free for less common and legacy platforms. But the intended use of QR codes and for devices without Internet access is mostly limited to the import of business contacts and address data (vCards), trigger phone calls or text messages (see also “Overview of the different QR code types and functionality”). In particular, QR code business cards are perfect to enable others an easy and typo-free import of your own contact details. Just print a vCard QR code on your business card.