Types of apps built using kotlin

whenever a new language launches every developer have a very common question -

how much helpful this new language?

what we can develop using this language?

is this new language is easy to understand?

etc?

So here are the uses of Kotlin:

Desktop Application JavaFX, TornadoFX	Web Development Kotlin/JS
Android Development	Server-side Apps Spring-boot, vert.x,  JSF, Ktor
Native Development Kotlin/Native Library