FreeCellX 1.7 for Mac could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The actual developer of this Mac application is Chris Bigart.
The most popular versions among the application users are 1.7 and 1.6. You can launch FreeCellX on Mac OS X 10.6 or later. The application is categorized as Games. The bundle identifier for this application is com.chrisbigart.freecell. Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe.
From the developer:
A simple, easy to use, and lightweight version of the popular solitaire game. Users of popular freecell applications will feel right at home with compatible game numbers and a simple, familiar interface.
Announcement: I have noticed a number of reviews by users having problems moving cards between piles.
You may want to check out more software for Mac, such as FreeCell Plus trial, Aloha TriPeaks or MahJong Medley, which might be related to FreeCellX.