He moved to an Executive Chairman position while Jeff Glueck, the company's COO, succeeded Crowley as the new CEO.
The new app has changed the focus of the app to being primarily a local search and discovery tool, where users can "follow" others to receive local recommendations from them.
Foursquare lets the user search for restaurants, nightlife spots, shops and other places of interest in their surrounding area.
Pilgrim is able to guess a user's current location by comparing historical check-in data (previous users tacitly stating "I am here") with a combination of signals such as a user‘s current GPS signal, cell tower triangulation, cellular signal strength and surrounding wifi signals.
In this way Foursquare can know a user's location without them needing to "check in".
It is then able to recommend nearby places to the user that match their tastes.
Foursquare 8.0 uses its own proprietary technology called Pilgrim to detect a user's location.
The app provides personalized recommendations of places to go to near a user's current location based on users' "previous browsing history, purchases, or check-in history". Crowley had previously founded the similar project Dodgeball as his graduate thesis project in the Interactive Telecommunications Program (ITP) at New York University.