There's also j2objc, another interesting tool for creating a common layer for iOS and Android apps. https://github.com/google/j2objc https://github.com/google/

There's also j2objc, another interesting tool for creating a common layer for iOS and Android apps. https://github.com/google/j2objc https://github.com/google/j2objc I'm playing with it for a personal project, and as long as you're not too adventurous with your use of the JRE, it produces pretty usable Objective-C code.