Archive notice: This article was originally published on May 13, 2013. Links and embedded videos are preserved as part of the historical record.
Developers Remus Gabriel Juncu and Igor Markov are making version 3.1 available for 39 euros. The toolbox contains plenty of little helpers, from a selection tool to a rendering tool, and is intended to pave the way from idea to finished 3D model with a toll for every stage.
Here is an overview of what can be done with RappaTools: