It involves designing and implementing user interfaces, integrating with device-specific features such as camera, location, and push notifications, and writing code to handle data storage, networking, and user interactions. Swift is a modern, high-performance language that provides developers with powerful tools to build efficient and elegant applications. Native iOS apps are designed to run seamlessly on Apple devices and provide a superior user experience compared to cross-platform apps. Development tools such as Xcode and the iOS SDK are used to build, test, and deploy iOS apps to the App Store.