Download of Orange3 3.36.2 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. The application lies within Developer Tools, more precisely IDE. According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. This free Mac app is a product of University of Ljubljana.
From the developer:
Orange3 is component-based data mining software. It includes a range of data visualization, exploration, preprocessing and modeling techniques. It can be used through a nice and intuitive user interface or, for more advanced users, as a module for the Python programming language.
You may want to check out more Mac applications, such as JProfiler, Pashua or Kerberos, which might be related to Orange3.