Fracton is free and is available on the Mac App Store. Go to the Mac App Store.

Create unique 3D fractals. Choose a fractal type or enter your own formula. Compose your scene and let Fracton ray trace render your fractal. Export image sequences and make a morphing movie.

Fracton also supports 2D fractals and has arbitrary precision arithmetic. Import parameter files from other fractal applications.

System requirements: Fracton requires Mac OS X 10.13 or higher.