If you’ve not come across the Mandelbrot Set before, then Fractal Photographer makes an excellent first guide, slowly revealing the fascinating infinity of gorgeous fractal patterns.
The app is perfect for tablets, its multi-touch support enabling you to zoom in or rotate to get the best possible view. But the authors haven’t forgotten mouse users, either: you can click to move focus, scroll the mouse wheel to zoom in and out, and everything works just as you’d expect.
The program can also use multiple colour schemes to create new effects. If you find a particularly interesting point then you can bookmark it for easy access later. And a Save option enables you to save HD versions of your best patterns, ready to be shared with others