Whether you end up creating an app with Java, Kotlin or C#, you need the SDK to get it to run on an Android device and access unique features of the OS.

If you want to learn the Kotlin programming language, check out this list of books, courses, tutorials, videos and websites.

Kotlin offers big advantages over Java for JVM and Android development, and plays nicely with Java in the same projects. Kotlin is a general purpose, free, open source, statically typed ...