Does "Try Kotlin" work exactly the same way as using Kotlin in IntelliJ?

I'm currently evaluating Kotlin playing around with it on "Try Kotlin" and ran into compiler crashes, parser failures and unexpected behaviour that seems to contradict the documentation. So I wonder: Is "Try Kotlin" the real Kotlin, or do I need to test it in IntelliJ to evaluate it fairly? runs the real compiler. The editor behavior may differ from IntelliJ IDEA plugin, but the behavior of the compiler and programs it generates is the same.