Foursquare founder Dennis Crowley announced the impending closure of the Foursquare City Guides app, set for December 15, 2024. This decision marks a shift towards prioritizing the check-in app, Swarm, and reflects a decline in the City Guides' relevance in today's social media landscape. Crowley expressed nostalgia over the app's legacy, highlighting its innovative approach to urban exploration. Users have shared their sorrow, describing the closure as a 'gut punch.' Despite the app's shutdown, Foursquare continues to thrive, generating over $100 million in revenue.