It is game, a joke, and the tool for interesting experiments. There are various versions of this app. This is a free demo version of the application, which is designed to get you acquainted with the functions of a digital harmonic spectrum analyzer of different sounds.
Using the trial version, you assure yourself that the original design of the Sound Analyzer has many advantages. More information on this and subsequent versions of the device is available on the website of the developer.
Download this app and see its benefits for yourself.
Comments are welcome.