Sound Monitor – Noise Detector turns your Android device into a simple, real-time sound level monitor.
It uses your microphone to measure volume (in dBFS) and shows easy-to-read visual feedback:
Green = safe/normal level
Yellow = getting loud
Red = too loud
Perfect for:
Checking your speaking volume (e.g. for kids, classrooms, or family use)
Monitoring noise in your environment
Quick sound checks without complicated tools
Features:
Live volume monitoring with color alerts
Adjustable thresholds for Yellow/Red
Gradient background for smooth visual feedback
Simple, lightweight, and ad-supported
Works offline (no internet required)
This app is designed for convenience and awareness, not professional noise measurement. For critical sound level testing, please use a calibrated sound level meter.