Чому Kotlin, а не Java?

Finally, Kotlin has better support for Android development than Java does. Це включає в себе особливості null safety and Android Extensions, які роблять розвиток Android applications with Kotlin дуже easier than with Java. Android developers потрібні Kotlin compiler, making each Kotlin project way more efficient.

Посилання на StackShare community, C# has a broader approval, being mentioned in 697 company stacks & 1163 developers stacks; compared to Kotlin, який є у 268 company stacks and 208 developer stacks.

Kotlin generates very similar bytecode to Java, so Performance of Kotlin code is in most cases the same as the performance of the equivalent Java code.