More than anyone except Andrew Barry, I am responsible for the creation of Realbasic. (This doesn’t reflect particularly well on me, it just means that Andrew pays, or paid, more attention to my whining than most random people.)
In the mid-90s, Andrew and I had both been involved in software development across multiple platforms for some years, and both of us were annoyed by glaring flaws in most development tools. I had gone to work for Andersen Consulting and been forced to develop a very ambitious multimedia project using Visual Basic 3, a development tool I found both admirable and horrible in pretty much equal parts. It was obviously inspired by HyperCard, but good in ways that HyperCard was bad (it created native UIs) and bad in way that HyperCard was good (it was horribly unstable, the language reeked).
Andrew and I would often shoot the breeze about dev tools and at some point I opined that what the Mac really needed was something like Visual Basic that didn’t suck. So Andrew created CrossBasic which became RealBasic. Anyone even casually acquainted with the two products will know that Realbasic owes more, architecturally, to MacApp and Java than Visual Basic. E.g. from the beginning there were “folderitems” which strongly resemble the object wrappers Apple’s frameworks use for filesystem objects. Similarly, all visible controls are subclasses of Canvas, which is the base graphical class in Java. Indeed, CrossBasic originally allowed you to compile programs to the JVM. Worst of all, in Visual Basic prior to .NET you essentially use simple variable types except when doing file i/o. In Realbasic you define your own classes and subclasses (including being able to subclass internal classes seamlessly). All of this was part of Realbasic 1.0.
Why bring this up now?
Well, it’s a long time down the road. Andrew left Real software after finishing Realbasic 2 (I think it was 2.1.2 at the time, which was for a long time the “golden” version of Realbasic). A few months ago, I answered a question of Stackoverflow about “which languages supported nice language feature X” and mused in my response that not only did Realbasic support it but that it supported many, many nice language features you don’t expect in a “BASIC”. I then got critical feedback based on Realbasic’s having started life as a “clone” of Visual Basic.
So I’m setting the record straight. Realbasic was never a “clone” of Visual Basic. It wasn’t an inferior copy, but a superior re-imagining. Just as Visual Basic stole ideas liberally from HyperCard while being dramatically superior in many ways, Realbasic stole ideas liberally from Visual Basic while being dramatically superior in almost every way. (E.g. it never put developers through DLL hell, even under Windows.)