Locaid Geofence allows businesses to create virtual perimeters around physical locations to track when mobile devices enter or exit these areas. Geofences can be any shape or size and notifications can be sent via SMS or API when a device crosses the boundary. Common uses of geofencing include proximity marketing for retailers, tracking attendance at events, and managing fleet vehicles or employee locations. The Locaid Geofence service works with any Locaid location data to easily set up geofences in five steps and track over 350 million mobile devices.