The 2.6 version of Circular Studio for Mac was available to download on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The software belongs to Design & Photo 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. The actual developer of this software for Mac is BrainFeverMedia LLC.
From the developer:
Circular Studio turns your photos into amazing circular images. You can easily zoom in and out your circular image to get it just right. Once you're happy with your image, you can add professional effects such as lens flares and sky objects like the sun, moon, birds, etc. The tool provides a collection of "center" objects that include spheres, planets, and geometric shapes to place at the center of your image circle.
You may want to check out more software for Mac, such as 3D Sketch and Stretch Studio, Glyphr Studio or iSkysoft DVD Studio Pack, which might be related to Circular Studio.
Puzzle
Document management