An approach is provided for determining a group of users based on the overlapping area of two or more existing groups and providing services and/or content to the group based on the services and content of the existing groups. An interaction platform determines shapes of groups based, at least in part, on location information associated with one or more member devices of the groups. The interaction platform causes, at least in part, a presentation of one or more representations of the shapes in a location-based user interface. The interaction platform determines one or more applications, one or more content items, or a combination thereof being used at the one or more member devices. The interaction platform causes, at least in part, a presentation of one or more other representations of the one or more applications, the one or more content items, or a combination thereof in the location-based user interface.