Download of CoDesktop unknown 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. We recommend checking the downloaded files with any free antivirus. The application is categorized as Productivity Tools. This free Mac application is an intellectual property of Onepgr App.
From the developer:
CoDesktop offers a simple way to hold your meetings. Your meeting attendees can join from any desktop, laptop, or mobile device using any browser. It works even when joining from mobile devices. The program supports simple desktop sharing and protected access using session IDs.
You may want to check out more Mac applications, such as BigCloud Archives, Everport - for moving 37signals' Backpack data to Evernote or MapMan, which might be related to CoDesktop.