AstroVizor 4.0 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 program is included in Lifestyle 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. This free Mac application is an intellectual property of Andrei Semenov.
From the developer:
AstroVizor is the application for astrologers. It can create natal chart or transit chart, display tables of planets and aspects. For beginning astrologers it allows to search for interpretations in the Internet (on double click on the planet sign or aspect line). Descriptive text is provided for each type of astrological chart or table.
You may want to check out more software for Mac, such as Qouija, Healing the Pain or Islamic Calendar, which might be similar to AstroVizor.