StoneSaver 1.0 for Mac was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The software relates to Theming Tools. 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:
StoneSaver is a screen saver which replays professional Go Games. You can also add your own games to be replayed. See the Readme file.