The 1.4.1 version of Circcles for Mac was available as a free download on our website. The actual developer of this free software for Mac is atxx. The software lies within Design & Photo Tools, more precisely Viewers & Editors.
From the developer:
Circcles is a free application that allows you to perform actions just by dropping something. So, Circles adds a trigger point to a side of your screen, and you can either trigger it by click or just drag something against it like a file, image or text snippet.
You may want to check out more Mac applications, such as Smith Chart for Mac, Movie2Shot or TVPaint Animation, which might be related to Circcles.