From Rosetta Code
This programming language may be used to instruct a computer to perform a task.
Type safety: Safe
Type strength: Strong
See Also:

Listed below are all of the tasks on Rosetta Code which have been solved using REALbasic.
REALbasic is an implementation of BASIC. Other implementations of BASIC.
REALbasic is an example of an Integrated Development Environment, a class of software which typically combines enhanced editing and debugging features.
REALbasic is an example of a compiler. You may find the programming tasks that have been solved using it here.

REALbasic (or RB) is a BASIC compiler for Windows, Mac OS, and Linux, made by Xojo, Inc. It has its own IDE, and projects are saved to a proprietary binary format. Unlike most BASICs, REALbasic is heavily object-oriented.

As of June 2013, the language, IDE, and company have been re-branded as Xojo.

REALbasic is not compatible with other BASICs, for the most part; examples from other BASICs usually have to be completely rewritten to work in RB.

The Wikipedia article has lots of information about REALbasic's history, capabilities, and features.