Free Sound Level Meter is a free Android application designed by Night Dev. Free Apps that transforms your smartphone into a professional environmental noise meter. With this app, you can measure any noise or sound and get the value in decibels in a simple and easy-to-understand way.

The app features a very simple and intuitive interface that displays the minimum, average, and maximum values in decibels, as well as a graph with the acquired data. It also comes with an easy calibration feature to ensure that your digital instrument is always precise and professional.

Free Sound Level Meter provides information regarding the ideal noise levels for various situations, from silent noise to a gunshot/siren. It can also be used as an applausometer. However, it is important to note that the maximum values are limited by the device, and very loud sounds over ~90 dB may not be recognized on most devices. This app is recommended as an auxiliary tool, and for more accurate dB values, an actual sound level meter is recommended.