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QRcao is a service that allows people to easily exchange contact details by scanning each other's QR codes, which stores more information than a traditional business card. It aims to solve the problem of not having an efficient way to store business cards digitally by developing a web and mobile app that records contact exchanges, keeps contacts up to date, and integrates with social networks. The company plans to generate revenue through paid PRO accounts and in-app features, as well as partnerships with print companies and conference organizers.Read less