You are downloading the Swarm APPX file v188.8.131.52 for Windows Phone. Swarm is a free and useful Social app: 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 ... You can now download the offline APPX file to install & try it.
Download Locations for Swarm 184.108.40.206 APPX file
Note: To install it manually from an SD card, you should choose one of the server location above to get the offline Swarm APPX file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.