Is there any application for android to write kotlin script in phone?

Answer 1

Not that I know of.

Answer 2

Depends on what you mean. I use:
https://play.google.com/store/apps/details?id=com.paprbit.dcoder

It generates proper error messages when SoloLearn gets confused. But, it does not support making Android apps, limits time, memory, and still uses server like SoloLearn. I've never seen issues with delays or random errors like SoloLearn.

Answer 3

JvDroid is a nice app and has a free version, which supports Java and Kotlin projects with Maven:
https://play.google.com/store/apps/details?id=ru.iiec.jvdroid

This will work offline as well, as no server connections are required (except maybe initially when making a new project Maven retrieves the Kotlin standard library).