Fritz is not available for Mac but there are plenty of alternatives that runs on macOS with similar functionality. The best Mac alternative is Scid vs. PC, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to Fritz and 12 are available for Mac so hopefully you can find a suitable replacement. Other interesting Mac alternatives to Fritz are XBoard, 5D Chess with Multiverse Time Travel, Shredder Chess and HIARCS Chess Explorer.
Shane's Chess Information Database is a powerful Chess Toolkit, with which one can create huge chess databases, run engine analysis, or play casual games against the computer or online with the Free Internet Chess Server.
XBoard, also known as WinBoard on Microsoft operating systems, is a free graphical user interface client developed by Tim Mann that is compatible with various chess engines that support the Xboard Communication Protocol such as GNU Chess.
Jin is an open source, cross platform, graphical client for chess servers, written in Java. Jin can run either as a standalone application (available at this website) or as an applet, directly from your browser (available at the chess server's website).
Battle vs. Chess is a computer game version of chess developed by Targem Games and Zuxxez Entertainment and published by TopWare Interactive. It was released on May 17, 2011 for PC (Windows and Mac), PlayStation 3, PlayStation Portable, Nintendo DS, Xbox 360 and Wii in Europe.
3D Super Chess offers a beautiful and customizable chess experience featuring both 2D and 3D environments. Play against a challenging virtual opponent or friends in PvP mode on the same Mac. Thanks to the rotating chessboard you'll always stay on top of things.