Foursquare today released an update to its Swarm app for iOS that now shows mayor leaderboards amongst_your friends on every check-in. The app also now includes easier sharing to Facebook and Twitter, faster and more accurate check-ins, and photos from venues. Swarm launched in May in an effort by Foursquare to splinter off check-ins into a standalone app and reserve the main Foursquare app for location discovery. The company also moved to distance itself from the gamification features for which it had become known. For instance, mayorships are now competed within circles of friends, rather than service-wide. _ _ _...

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