Nota: la lista fue recolectada de un post de NSLog.dev

Roadmap

Libros

‎The Swift Programming Language (Swift 5.3)
Swift is a programming language for creating iOS, macOS, watchOS, and tvOS apps. Swift builds on the best of C and Objective-C, without the constraints of C compatibility. Swift adopts safe programming patterns and adds modern features to make programming easier, more flexible, and more fun. Swift’s…
Libro oficial de Swift. Quizás no sea la lectura más entretenida del mundo pero es un excelente material de consulta y una buena forma de empezar.

Apps

Swift Playgrounds
Swift Playgrounds is an app for iPad that teaches you to write Swift code in a fun, interactive way. Program robots and drones directly from the app.
Disponible para iPadOS y macOS. Está pensado para gente que no sabe programar y para niños. Si te parece muy básico podés consultar los ejemplos más avanzados.
The unofficial WWDC app for macOS
Watch all WWDC videos from this year and previous years.
Durante mucho tiempo no hubo app oficial de WWDC. Esta es excelente y Open Source. Si tu duda es "Cómo uso X feature del iPhone" o qué cambios hubo en los últimos años en el SDK, este es el lugar.
‎Talks&Coffee
The first mobile app that lets you search and reproduce online videos of any iOS talk around the world in a single place. Do you remember that talk you saw in UK? No problem, probably we have it :) Besides, you can filter:- by conferences names- by talks names- by speakers All videos are broa…
Una app que concentra muchísimo contenido de distintas conferencias: "tru! Swift", "swiftable", "UIKonf", etc

Autores

raywenderlich.com | High quality programming tutorials: iOS, Android, Swift, Kotlin, Flutter, Server Side Swift, Unity, and more!
High quality programming tutorials: iOS, Android, Swift, Kotlin, Flutter, Server Side Swift, Unity, and more!
Hacking with Swift – learn to code iPhone and iPad apps with free Swift 5.2 tutorials
Learn Swift coding for iOS with these free Swift 5.2 tutorials
Yet Another Swift Blog - Learn Advanced Xcode and iOS Development with Swift 5
Learn Swift programming for iOS with these free Swift 5 tutorials. Written by Vadim Bulavin.
Swift by Sundell
Weekly Swift articles, podcasts and tips by John Sundell