Facebook UI design & app screens

Facebook is the social network for connecting with friends, sharing updates, joining groups, and following pages. It serves a massive global audience across personal and community use.

The iOS app is built around the News Feed, with Stories, Groups, Marketplace, and a notifications hub. Notable design patterns include the feed and post composer, the reactions and comment threads, and the multi-tab navigation, representing one of the most widely studied references for large-scale social UI.