Foursquare is a location-based social networking app designed specifically for smartphone and mobile device use. The site explains: Sometimes youll want to check-in without sharing your specific whereabouts with friends. This is why we created Private check-ins Do we really want other people to know where we are at any given moment in a day? Do we want our movements chronicled in social media? Instead of broadcasting our every move, we should focus instead on protecting our privacy.”]
Source: https://informationsecuritybuzz.com/articles/use-foursquare/