Abstract: The present disclosure relates to a system and methods for exchanging information between a plurality of mobile devices by pairing the two mobile devices based on proximity of the two mobile devices. In some implementations, the method includes determining a geographic position and angular orientation of the devices. In other implementations, the method includes determining that at least one mobile device heard a unique sound produced by the other mobile device. Once paired, the server can send information to one or both of the mobile devices and, in some cases, can revoke the exchanged information, e.g., in response to a revocation request.

Abstract: The present invention relates to a system and methods for exchanging information between a plurality of mobile devices by pairing the two mobile devices based on proximity of the two mobile devices that are in ready to exchange mode within the network. The two different methods to initiate the pairing can work simultaneously or independently. One utilizes a set of actions within a specific time and the angle of the devices facing each other, as the other utilizes a unique sound and its recognition. Once paired, the server sends an information to the each of the said mobile devices.

Abstract: The present disclosure relates to a system and methods for exchanging information between a plurality of mobile devices by pairing the two mobile devices based on proximity of the two mobile devices. In some implementations, the method includes determining a geographic position and angular orientation of the devices. In other implementations, the method includes determining that at least one mobile device heard a unique sound produced by the other mobile device. Once paired, the server can send information to one or both of the mobile devices and, in some cases, can revoke the exchanged information, e.g., in response to a revocation request.