Turn your Android device into a decibel meter by simply downloading this app. This app uses your phone's microphone to measure noise or sound levels. Here, you will find graphical data that shows the minimum, maximum, and average decibel values recorded and the elapsed time of decibels.

Measuring sound levels helps you identify harmful noises that can affect your hearing and health. It is also very useful when checking out a new place and trying to see if it's quiet enough for you.

It is very simple and easy to use. Moreover, it is highly reliable. You can even calibrate it for various devices.