Editors' Note: The download button opens the iTunes App Store, where you may continue the download process. You must have iTunes installed with an active iTunes account in order to download and install the software. This download may not be available in some countries.
Swarm, the new app from Foursquare, is the fastest way to keep up and meet up with your friends. With Swarm, you can easily see who's out nearby and who wants to hang out later.