A mobile device includes a storage device in which an application software of a third party service provider and rules associated with the application software are stored, a network interface, a sensor configured to detect a location of the mobile device, and a processor configured to generate a location alert to be transmitted through the network interface according to the rules. The mobile device implements the rules for location-based alerts therein such that the frequency of the alerts is carefully controlled and the power supply of the mobile device is efficiently utilized.