Thanks - that's what I'm discovering in my research. My Mac is a 64 bit platform tons of memory - seems odd to me I can't find a respectable effort for this platform. 

 

Barb

 

Quote - Most apps now days are programed for PC, 32 and 64 bit platforms, there are some specifically for Mac but not many. Xyrus has an Apo version for Mac I believe, Mandelbulber may also I can't remember. I know a lot of folks at Fractal Forums run Mandelbulb3D on Mac's using WINE(Windows Emulator for MAC). UF has a Mac Version for sale.