Downloading physicsmata 2.1.0 for Mac from our website was free. The program relates to Education Tools. The actual developer of this free Mac application is Ben Rayfield.
From the developer:
Physicsmata is an API for all possible cellular automata that work the same at all angles. It is similar in effect to SmoothLife but simpler and pure Java. The cellular automata API takes a function to run at each point. Its parameters are sums of screen brightness (n color dimensions are optional) at concentric circles around each point, efficiently costing only the perimeter of those circles (instead of the area) because of the tree of squares.
You may want to check out more Mac applications, such as Genealogy Pro, Analytics to Earth or TreeView X, which might be related to physicsmata.