The 1.0 version of Freesponse 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. We recommend checking the downloaded files with any free antivirus. This free Mac app was originally created by Travis East. Freesponse for Mac lies within Design & Photo Tools, more precisely Presentation Tools.
From the developer:
Freesponse is a program that uses a computer lab's shared network directory to simulate what is often referred to as an immediate feedback or student response system. Members of an audience or classroom are prompted for answers to a series of true/false questions.
You may want to check out more software for Mac, such as PCR Editor, Vvidget or Winscape, which might be similar to Freesponse.