Our website provided a free download of Loopt 4.1 for Mac. Loopt for Mac lies within Communication Tools, more precisely Texting & Video calls.
From the developer:
Loopt connects you with the world around you like never before! Pinch, tap and drag an interactive map to find where your friends are and what they're doing. Connect on the fly and instantly share photos and comments with all your friends and communities like Facebook, MySpace and Twitter. Discover nearby places and events recommended by friends and popular local services such as Yelp.
You may want to check out more software for Mac, such as TRx Recorder or Skype2Prowl, which might be related to Loopt.