Can we say Kotlin as pure OOP?

Answer 1

Kotlin provides functionally friendly shortcuts which eliminate "boilercode", meaning boilerplate class setup used in Java.

For example: Creating a singleton is done just by calling an object. It works if it's just a single instance.

Kotlin is a collection of extension functions on top of Java implemented by kotlinx libraries, and it’s supposed to work with all Java libraries.
Java is object-oriented, so that object-orientation doesn’t go away just because you took some functionally friendly shortcuts.

Answer 2

It do the best at both job, functional and object orinated but since it have many functions types i.e over 7 it appeared to be more functional than orinated
Some refs
https://kotlinlang.org/docs/faq.html
https://en.m.wikipedia.org/wiki/Kotlin_(programming_language)

Answer 3

Yes , java use primative data types which are not class but kotlin is no