Download of PortAuthority 9.1 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. This Mac application is an intellectual property of Kevin Walzer. The most popular versions of the tool are 6.2 and 5.0. The bundle identifier for PortAuthority for Mac is com.codebykevin.portauthority-cbk. We recommend checking the downloaded files with any free antivirus. You can install this app on Mac OS X 10.9 or later. The program is categorized as System Tools.
From the developer:
PortAuthority provides a graphical user interface for the MacPorts package management system for Mac OS X. MacPorts is a powerful command-line tool for installing and updating a variety of Unix-based applications for the Mac.
You may want to check out more software for Mac, such as CopyPath, TrimTheFat or DataLore, which might be similar to PortAuthority.