Does the job surprisingly well – dB Meter & Spectrum Analyzer Review
Side by comparison with another calibrated meter using wide dB span of white noise and real life sounds showed very close results with minimal adjustment to app.
The app provides reasonable data that is helpful for basic sound evaluation. A certified and calibrated meter would be required if you are involved in a technical or legal matter.
Review by Mekinol on
dB Meter & Spectrum Analyzer.