
We've been
bullish about location-based social networks for quite awhile now, especially since Apple announced that it would open up the iPhone to developers. And with two significant developments in this space just this week (more on that below), we thought it would be a good time to take a step back and look at the options currently available through the Apple App Store. What makes a "location-based" social network different than a normal one? At least as things stand today, location-based social networks run primarily on smartphones that have the ability to determine a user's current location, usually by leveraging GPS or satellite tower triangulation. The social network then uses your location to reveal nearby friends and places of interest. Currently there are six major location-based social networks available for the iPhone (see our
comparison chart). All of them tell you how far away other members are from you, with most focused on helping you find your friends but some designed primarily for discovering strangers. A few of them chart the location of your friends' on an interactive map (something I actually think all of them should do). They provide a wide range of privacy settings, but all will stop reporting your location when you simply close the application (Apple has yet to release its
push notification system that will let these apps constantly report your location in the background). They also vary widely in how precisely they identify the locations of other members, although all but one of them work anywhere in the United States. After testing this entire batch, I've come to the conclusion that none of them is quite ready to achieve mainstream usage. I believe most, if not all, of the following things must happen before location-based social networking becomes the new "killer app":
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