by Dan Selig
Platform: Mac OS X Intel
Buy new: $9.99
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Explore the infinitely fascinating Mandlebrot fractal set with MBrot7. The interesting part is the boundary between the black portion and the rest of the display. Zoom up on an area by dragging a rectangle around it. The zoomed area will fill your display area and display in wonderful colors. You can control the color hue, variance, and lightness with slider controls. Control the center and extents of your image and print it out for transfer to T-shirts, coffee mugs, posters, etc.
MBrot7 comes with a complete help file.