[foursquare]Foursquare Trademark Usage for API Developers "Though you can’t use ‘foursquare’ or ‘check-in,’ and you can’t use ‘4sq’ as a stand-alone word, you can use one of the following combined with other words:
[foursquare]Foursquare Trademark Usage for API Developers "Though you can’t use ‘foursquare’ or ‘check-in,’ and you can’t use ‘4sq’ as a stand-alone word, you can use one of the following combined with other words: