Используйте приложение APKPure
Историческую версию Kotlin-Android можно получить на Android
Котлин учебник App, легкий, удобный и быстрый способ выучить новый язык с помощью Google
This App is developed with the idea of a complete kotlin reference on android in a handy way and, better understanding of the language.The initial version of this app will be offline but latter, I will add online update. I've tried to keep it simple and in concise and
concepts are to the point. Please share your valuable feedback to improve this app.