Ping is a simple way to exchange information with people you meet - a digital business card if you will. However this is just the foundations for a personal CRM - a tool that will help you keep on top of and organise your network.
Drop: Exchange Contacts is NOT "another business card app." Drop is a communication tool that facilitates the seamless exchange of contacts quickly and effectively, on par with the traditional paper business card user experience. This is achieved through a proprietary crossplatform device pairing technology and enhanced OCR.