Wrong app? – Toolbox - Smart Meter Tools Review

This TOOLBOX app, showed a decibel meter, which was the app that I was searching for. However, with all the other tools included in the app, it appeared to be far more versatile, which is why I chose it. After downloading it, there is no decibel meter and none of the tools worked. Why would that be?
Review by tele-eddie on Toolbox - Smart Meter Tools.