Opus Domini 2.7.1 for Mac could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The software lies within Productivity Tools, more precisely Mind-mapping.
The most popular versions of the tool are 2.7, 2.4 and 2.3. This Mac application was originally developed by piso13. You can install Opus Domini on Mac OS X 10.9 or later. The bundle identifier for this application is com.piso13.opusDomini. We recommend checking the downloaded files with any free antivirus.
From the developer:
Opus Domini is as easy as writing a list on paper, but powerful enough to get you where you want to go.
Instead of getting frustrated with endless task lists, our planner views will ensure no overbooking, completed items will keep you motivated and information on uncompleted tasks and goals will help you make adjustments and reach your goals.
You may want to check out more software for Mac, such as Opus Domini Lite, Opus Tools or Opus One Lite, which might be related to Opus Domini.