Abstract: Methods and systems are described for determining relevance for advertising categories for devices. In one embodiment, a system determines parameters for relevancy scores for advertising categories for a device. The system generates engagement factors for the advertising categories for the device. The system can generate the relevancy scores for the advertising categories for the device based on the parameters and the engagement factors.

Abstract: Methods and systems are described for providing advertising services based on device profiles. In one embodiment, a system generates a device profile for a device based on at least two parameters of a plurality of parameters including location of the device, a social profile for a user of the device, and applications installed on the device. The system determines a likelihood that the user will install an uninstalled application among a set of uninstalled applications and then selects an uninstalled application having a highest likelihood of being installed on the device.