MCC Pilotlog will be making their software as a cross platform version usable on Mac's and Win's. Currently it is Windows only and I use "parallel desktop" so I can use it on my Mac. The best thing about the Mcc is that I only had to pay one time only for the software, all updates included.
Logten looks cooler though and they can track your Duty time and display it easily on the iPhone app. I believe Mcc will keep up with Logten though.