Communication is established between a plurality of users through mobile computing devices. A server communicates with the mobile computing devices. Unique User Identifiers (UUIDs) are registered on the server through a network, and a database connected to the server stores the uploaded UUIDs and associated data. The server receives and sends communications to and from the mobile computing devices, receives UUIDs and associated data from mobile computing devices, and sends UUIDs and associated data to one or more mobile computing devices.