Facebook SDK for iOS
In iOS SDK
People can sign in to your app with their Facebook Login.
Drive installs with Mobile App Install Ads. Increase engagement with Mobile App Engagement Ads. Find your target audience with Custom Audiences for Mobile Apps. Monetize in your app with Audience Network.
Understand people's actions in your app and measure the effectiveness of your Mobile App Ads.
Get data in and out of Facebook's social graph. Query data, post stories, upload photos and do other tasks.
People can send invites to friends from your app.
Link to a context in your app.