Systems and methods are provided for geo-fencing using a mobile device. In certain instances, the geo-function setting sets boundaries relating to when alerts may be presented to a user of the electronic device, or when an alert may be transmitted to another electronic device. A geo-function setting may relate a perimeter around a location, or may relate to a perimeter bracketing a pre-defined route traversed by a person carrying the electronic device. When the electronic device crosses a perimeter, an alert may be presented or transmitted according to the operating system setting. In other instances, a geo-function may be initiated though a user interface of the electronic device, and may relate to the learning of a route traversed by a person carrying the electronic device.