Having two similar languages on different platforms isn't as useful as having the same language on both platforms, though. So, you can have Kotlin on iOS via R

Having two similar languages on different platforms isn't as useful as having the same language on both platforms, though. So, you can have Kotlin on iOS via RoboVM. But that's kind of expensive. Also, RoboVM brings its own heavy runtime environment with its own class hierarchy, garbage collector, and the need to bridge between that world and the ObjC runtime. Or you can have RemObjects's almost-Swift (http://www.elementscompiler.com/elements/silver/ http://www.elementscompiler.com/elements/silver/) on Apple platforms, Android/JVM, and .NET as well. I call Silver almost-Swift because some permanent differences from real Swift are documented here: http://docs.elementscompiler.com/Silver/DifferencesAndLimitations/ http://docs.elementscompiler.com/Silver/DifferencesAndLimita... For that reason, though I like the Elements compiler's approach of targeting each platform in the most native possible way, I'd recommend using their C# front-end or even their Oxygene language (a Pascal derivative) instead.