Generally, an illustrative system for optimizing an advertising campaign on a mobile device includes a graphic user interface for accessing by at least one of a carrier and an advertiser, a data store, a campaign delivery engine for delivering advertisements into content provider spots and recording events into the data store, and an optimization engine. The optimization engine can support the graphic user interface and analyze one or more campaign events each linked with corresponding subscriber demographic data obtained from the data store for adjusting the advertising campaign during its run. The illustrative system can also support one or more methods disclosed herein.