The 2.0 version of Camtasia Relay for Mac was available to download on the developer's website when we last checked. We cannot confirm if there is a free download of this app available.
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. The following version: 2.0 is the most frequently downloaded one by the program users. Camtasia Relay for Mac relates to Business Tools. This software for Mac OS X is a product of TechSmith Corporation.
From the developer:
Lecture and presentation capture for your entire organization
The most streamlined way for anyone and everyone at your organization to record live lectures, presentations and meetings from a Mac or PC. Automatically publish for all to view. No technical decisions for presenters, all the heavy lifting is done at a central server.
You may want to check out more Mac applications, such as Camtasia 2, Relay-based AND and NAND gates or Camtasia 2020, which might be similar to Camtasia Relay.