What are the different editions of TwistedBrush that are available?
Currently there are 2 editions available, TwistedBrush Pro Studio and TwistedBrush Open Studio. TwistedBrush Pro Studio is everything, all features and all brushes (over 9000 at this point). TwistedBrush Open Studio is a free version of TwistedBrush with many of the features of Pro Studio and just a handful of very fine brushes with the ability to purchase additional brush collections.
There is also a series of Studio products released by Pixarra which are born from TwistedBrush Pro Studio. They use the same great TwistedBrush brush engine, but with a simpler, streamlined interface. These focused studio products extract a key functional area of TwistedBrush Pro Studio, extend it, and make it easy to use. These are: Paint Studio, Tree Studio, Blob Studio, Liquid Studio, Luminance Studio, Pixel Studio and Selfie Studio.