Mac OS X
From KiCad EDA Suite Official Wiki
KiCad on the Mac OS X is still experimental, but most functionality works. Only the viewport algorithm is slow and the about dialog is broken.
Here are some screenshots to see it running on OS X
http://kicad.xor-gate.org/screenshots
In the download page there are different snapshot mirrors available.
Or can build yourself from source with the help of this document below: