Patent attributes
In an embodiment, a method comprises transmitting, from a mobile computing device to a server computer, first data identifying a selection at the mobile computing device of an app that is not associated with an identification module associated with the server computer that would allow the server computer to identify the device; receiving, at the mobile computing device from the server computer, second data identifying zero or more apps lacking the identification module that have been selected previously using the mobile computing device; determining whether a protocol handler for each of the zero or more apps lacking the identification module is in the mobile computing device; in response to determining that a particular protocol handler for one of the apps is in the mobile computing device, transmitting to the server computer a message specifying that the particular protocol handler is in the mobile computing device; communicating a reward to any of: a particular one of the apps that is associated with the particular protocol handler, or a user account associated with the mobile computing device; wherein the method is performed by one or more computing devices.