Eventus is an Xcode Native application for creating and browsing events, sharing them with friends and rating them. It has a lot of features like Built-in Comments, Editing Profile, Google Maps, Notifications, Facebook Login, and much more. This app uses Parse Server to configure backend. It’s hosted on Back4App service, which helps to integrate a lot of interesting widgets into the project. Eventus has very good documentation, It will help you set up everything properly;)