Facebook iOS SDK engages users in social applications. With this SDK, users can share messages from an app to Facebook, they can reach a target audience using the right ads, and increase visibility when a consumer is redirected to the AppleApp store. Some examples of applications developed with this SDK include Friend Smash and Swag Shop.
When the popular location-based social network Foursquare launched, it quickly attracted users with its game-like features. Now, with over 170,00 users, the service has rapidly become a huge source of data about the popularity of businesses and locations. In November, Foursquare gave developers access to some of this data by releasing an API (check out our Foursquare coverage here). Several applications that used the API were available at launch, with many more on the way. From shopping to games, here are four applications that really show off the potential of Foursquare's API.