RZTransitions - A library of tailor made iOS View Controller Animations and Interactions. RxGesture - RxSwift reactive wrapper for perspective gestures. STDevRxExt - STDevRxExt has some extension capabilities for RxSwift and RxCocoa which would make our are living uncomplicated. RxWebSocket - Reactive extension above Starscream for websockets. ReactiveSwift - Streams of values above time by ReactiveCocoa group.