Sound Meter is a free Android app developed by PCE Instruments under the Utilities & Tools category. The app provides the ability to measure the sound level in decibels in the environment. The app displays the minimum, maximum, and average values of the sound level.

The app is easy to use and provides accurate results. It is a great tool for anyone who needs to measure sound levels, whether it be for work or personal use. However, the app comes with a notice that most microphones built into smartphones are limited by the hardware and are mostly designed for everyday use. Therefore, the app should only be used for reference values and not relied on for precise measurements.