The 1.0 version of FreeHearingTest 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 program lies within Lifestyle Tools, more precisely Healthcare & Fitness. This free Mac app is a product of Free Hearing Test Software.
From the developer:
This program makes it easy to test and visualize your sensitivity to the range of human-audible frequencies. Free Hearing Test makes it easy to determine your hearing range while identifying frequencies where your ears have lost partial or complete sensitivity. This information is useful in identifying hearing problems that may be aided by hearing aids or other treatments.
You may want to check out more software for Mac, such as SafeDog, ezManagerMax or Pulsphotometer, which might be related to FreeHearingTest.