Swift is a robust and intuitive programming language created by Apple for building apps for iOS, Mac, Apple TV, and Apple Watch. Its designed to give developers more freedom than ever. Swift is easy to use and open source, so anyone with an idea can create something incredible.
You can learn swift programming and iOS Application component from this app. you can also learn third party framework integration, pods installation, application deployment, MVC architecture, InAppPurchase, Database, Webservices etc..