3 ms·117 GB of data and 300 B for a checkin means that Foursquare has had 408,944,640 checkins.by chrislloyd 16y ago117 GB of data and 300 B for a checkin means that Foursquare has had 408,944,640 checkins.ehwizard 16y agoThere are numerous indexes on the data - so actual data is about half of that.ceejayoz 16y agoThey hit 200 million on Oct 6. http://techcrunch.com/2010/10/06/foursquare-200-million/ http://techcrunch.com/2010/10/06/foursquare-200-million/