Digital Sound Level Meter FREE is an Android application developed by Patrick Giudicelli that allows you to use your phone's microphone as a sound level meter. This app falls under the Multimedia category and specifically under Music & Radio subcategory.

The app provides real-time measurement of sound levels and displays them on a gauge and a graphical representation. It also displays the minimum and maximum sound levels recorded during the measurement. Two buttons enable the user to hold the measurement and reset the values. The app provides a simple and user-friendly interface that is easy to understand and use.

Overall, Digital Sound Level Meter FREE is a useful tool for anyone who wants to measure sound levels in their environment. It is a free app and can be downloaded from the Google Play Store.