Download of PhotoCircus 1.0 for Mac was on the developer's website when we last checked. We cannot confirm if there is a free download of this app available.
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. The program is included in Theming Tools. The actual developer of this Mac application is Script Software.
From the developer:
PhotoCircus Screen Saver is a slide show screen saver with a few extras: Able to show background or foreground alpha channel images (sample images included). Set background color for text and background if no background image. Optionally display image annotations, file name and/or custom message with the images.
You may want to check out more software for Mac, such as ART FOREST MAGIC CLOCK, which might be similar to PhotoCircus.