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Sound Meter & Noise Detector by Tools Dev is a lightweight, real‑time decibel monitoring app that turns your Android device into a portable sound level meter for everyday noise assessment. It uses your phone’s built‑in microphone to estimate dB(A) levels, displaying live readings with clear visual indicators that help you understand when sound enters potentially harmful ranges.
The interface centres on a large, responsive decibel gauge supported by numerical readouts, peak‑hold values, and colour‑coded alerts for quiet, moderate, loud, and dangerous noise. A built‑in noise history graph tracks fluctuations over time, useful for monitoring environments such as traffic, appliances, workplaces, or music events. Calibration controls allow you to fine‑tune readings to better match external meters, improving accuracy across different devices.
Additional tools include minimum/maximum logging, simple data charts, and quick‑access presets for common sound categories. While not a replacement for professional equipment, it offers a practical, accessible way to gauge noise exposure and promote hearing safety.
