[Android] Free: Sound Meter & Noise Detector Pro $0 @ Google Play

Sound meter PRO is an indispensable tool for your daily life, no matter what you do, where you stay, it is a practical noise detector to help you avoid noise pollution that harms your hearing and affect your rest. Our sound meter PRO app can provide accurate decibel data and show you how the decibel goes.

• Get noise data more comprehensively and more accurately:
  Minimal, average and maximal decibel
• Real-time decibel in dial and graph
  Levels of noise
• Calibrate before use for precise data
• Review measurement histories