Hi Saud,
ICC does care about Mac users, they have ICC for Mac, which works okay. http://download.chessclub.com/desktop/mac/ICCforMac.latest.pkg
If you don’t like it, you can emulate Windows on a Mac, using VMware. https://www.vmware.com/products/fusion and then run Blitzin on your mac! Note that you will need to purchase a license of Windows to install on your Mac.
What ICC is working on, but it will take some time, is a brand new UI that is web-based, with hopefully a lot of similarities with Blitizin. Hoping to a beta in late Q1 of 2016.