Tencent's Dididache is a smartphone application specially designed for Meizu, Zte, and Huawei that matches passengers and willing taxi drivers who are situated in close proximity. For passengers, a list of nearby taxicabs is created via GPS, and a signal is sent out indicating an expression of interest. Conversely, for taxi drivers with the app installed on their phones, the GPS system quickly lists and localizes nearby potential clients; and once a match is created, the taxi can efficiently pick up awaiting passengers.