A location services system used with a wireless LAN network provides wireless LAN Internet access in a venue, and also provides location-based analytics and services. The system monitors the locations of individuals using devices that communicate with a network, and maintain statistics for analytical purposes, and can provide services, such as special promotions and discounts. The system can determine whether a single person is carrying multiple devices, e.g., a user carrying a cellphone (including a smartphone) and a tablet or a laptop; and can also determine whether multiple people are within the venue as a temporary logical group, such as a family or group of friends. These capabilities allow the system to adjust how it communicates with users, and also allows it to adjust the analytics.