REALbasic is a cross-platform software development environment for creating software for Mac, Windows and Linux. REALbasic's compiler produces native executables, and it's a cross-compiler as well, which means you can build from any platform for any platform. Imagine building a native Mac application from REALbasic running on Windows! You don't have to know anything about the operating system because the REALbasic language abstracts you from the messy details. Should you need to get your hands dirty, you can use the Declare command. And you get a completely native user interface on each platform. REALbasic uses the real operating system controls rather than try to simulate them as some other lesser tools have done. REALbasic is a rapid application development environment that compiles high-quality, native applications for Windows, Macintosh, and Linux.