Download of EasyGuitarTuner 1.22 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. The program lies within Audio & Video Tools, more precisely Music Production.
This application was developed to work on Mac OS X 10.5 or later. According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. The actual developer of this Mac application is Max Schlee. This app's bundle is identified as com.neonway.EasyGuitarTuner. The most popular version among the program users is 1.0.
From the developer:
Very easy tool to tune your guitar  with the real instrument sound. Just click on the button and tune the guitar with the sound of the tuned string!
You may want to check out more software for Mac, such as FuzzMeasure, RealStrat or BFD2, which might be similar to EasyGuitarTuner.