...Increase engagement with Mobile App Engagement Ads. Find your target audience with Custom Audiences for Mobile Apps. A secure and convenient way for people to log into your app or website using Facebook. To provide functionality within the Facebook iOS SDK, we may receive and process certain contact, location, identifier, and device information associated with Facebook users and their use of your application. The information we receive depends on what SDK features third party applications use. Download and integrate the Audience Network SDK for iOS to monetize your app with Facebook ads.