Decibel Noise Detector, also known as Sound Meter, is a free Android application developed by click.done. It belongs to the Utilities & Tools category and provides users with an accurate measurement of the sound levels in their surroundings.

The app has an easy-to-use interface and displays the sound level in decibels with a real-time graph. It also includes a calibration tool that allows users to adjust the sensitivity of the microphone. With Decibel Noise Detector, users can measure sound levels ranging from 30 to 130 decibels, making it a handy tool for monitoring noise pollution, workplace safety, and even for measuring the sound levels of music concerts and events.