Используйте приложение APKPure
Историческую версию Learn Swift Offline можно получить на Android
Узнайте Swift на форуме
Swift is a new programming language developed by Apple Inc for iOS and OS X development. Swift adopts the best of C and Objective-C, without the constraints of C compatibility.
This application is designed for software programmers with a need to understand the Swift programming language starting from scratch. This application will give you enough understanding on Swift programming language from where you can take yourself to higher level of expertise.
Thank you for comming !