Abstract: Advertising audience segment creators, including methods, systems, and apparatuses for automated creation of audience segments in advertising platforms are disclosed herein. Data may be received at a processor of an application server from a remote device. The data may be related to a user of the remote device. An audience member may be retrieved from an audience database. The audience member may correspond to an external identifier of the user. The audience database may be stored on an electronic storage device. The audience member may be assigned to an event. The assigning of the audience member to the event may be based on the data. Assigning the audience member to the event may be based on a refresh interval. The refresh interval may be of an audience segment. The audience segment may be refreshed. The event may be synchronized with an external advertising platform.