ABSTRACT
The ToGathor App and mobile social network platform is designed for users coming, keeping, and working together. The hybrid cyber-physical social group formed could enable interactive, reactive, and proactive interaction/activities beyond pure physical or online social networks. The chapter focuses on two important features of being together, that is, location and communication, which highly relate to the "mobile" and "social." ToGathor is designed from the ground up to help one to socialize and interact with friends better. It is a unique hybrid cyber-physical mobile social network with the following salient features: connecting friends socially and physically, mission-oriented groups, tracking nearby friends. ToGathor not only connects one with friends online, but also provides physical proximity and location sensing capability. The applications of the group auto check-in can be automatic member check-in for students in a class, tourists in a group, friends at a party, or any other scenarios that involve a group of friends, making life smarter.
