Nik released SnapSeed for OS X a while back. It is really good for people who use it on their mobile devices and do not have anything better on the desktop/laptop systems.
Because I have Aperture on my desktop I decided against SnapSeed for OS X but use it on my iOS devices.
|Leafless Tree. by SpartanWarrior|
|50 Shades On The Paris Metro by wam7|
from Your City - Commute
|Montana Badlands by stickpointed|
from The Tree
|Kestrel by Lance B|
from My Best Photo of the Week