Reduced power location determinations for detecting geo-fences

A computing device comprising:

• a data store to store geo-fence data for multiple geo-fences;
• one or more location determination modules implemented at least in part in hardware each configured to provide a location of the computing device;
• and
• a power saving location checking module to invoke, based at least in part on sizes of one or more of the multiple geo-fences and a closest one of the multiple geo-fences, one or more of multiple location determination modules.

A computing device comprising:

• a data store to store geo-fence data for multiple geo-fences;
• one or more location determination modules implemented at least in part in hardware each configured to provide a location of the computing device;
• and
• a power saving location checking module to determine both which of multiple location determination modules to use to determine a location of the computing device and how often to have one or more of the multiple location determination modules determine the location of the computing device by delaying having the multiple location determination modules determine the location of the computing device based on a program state of a program being notified of geo-fence events, delaying having the multiple location determination modules determine the location of the computing device based on a state of the computing device, and delaying having the multiple location determination modules determine the location of the computing device in response to notifications for the computing device being suspended.