Quiet Sentry App

About the App

Our Quiet Sentry, developed by Wwgreen, transforms your smartphone into a professional-grade sound level meter. Utilizing advanced algorithms, it measures environmental noise with high accuracy, presenting real-time results in decibels (dB). Each recording is archived in a detailed log, allowing you to add custom notes and review key metrics anytime. Whether you're assessing workplace noise safety or simply curious about your surroundings, our app delivers reliable, easy-to-interpret data wherever you go.

Features

Measure

One-tap start and stop for instant noise readings. Displays minimum, maximum, average, and peak times after each session. Easy note-adding functionality enhances your logs.

Log

Comprehensive history of all measurements, sortable by date, time, or noise level. Tap into each record to view detailed statistics, trends, and personalized notes.

Triggers

Visual noise classification helps users instantly understand their environment — from whisper-quiet bedrooms to roaring construction zones, categorized for your convenience.

Noise Levels Guide

10–25 dB – Gentle Hush

Faint breathing or a still room.

30–45 dB – Calm Ambiance

Quiet home or distant bird calls.

50–60 dB – Moderate Space

Normal conversation or office noise.

65–75 dB – Lively Surrounding

Busy coffee shop or street traffic.

80–85 dB – Loud Zone

Hairdryer use or busy road.

90–95 dB – Very Loud

Heavy machinery or motorcycles.

100–110 dB – Intense

Power tools or live concerts.

115–125 dB – High Risk

Jackhammers or emergency sirens.

130 dB+ – Extreme Danger

Fireworks or rocket launches.