Sound Meter & Decibel Meter

DEVPROSTUFF

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About this app

📊 THE MOST ACCURATE FREE SOUND METER & DECIBEL METER FOR ANDROID

Measure noise levels in decibels (dB) instantly using your phone's microphone. See real-time sound levels on a live dial and graph, track noise pollution, and protect your hearing — no internet connection needed.

⚡ CORE FEATURES
📈 Real-time decibel meter with live dial and graph display
📊 Track minimum, average, and maximum decibel (dB) levels
🎚️ Calibrate the microphone for accurate readings on your device
📋 Full noise level reference chart (whisper to jet engine)
🔔 Set custom decibel warning alerts — sound or vibration when noise crosses your limit
🕒 Review your full measurement history anytime
🎙️ Record and save audio while measuring
✏️ Rename, share, and replay saved recordings
🌗 Light and dark theme support
📱 Switch between compact and expanded meter view

📱 PERFECT FOR
Checking if your workplace, classroom, or bedroom noise level is safe, monitoring traffic or construction noise near your home, musicians and audio techs checking sound pressure levels (SPL), parents monitoring safe noise levels for kids, and anyone protecting their hearing from noise pollution.

🔊 UNDERSTANDING DECIBEL LEVELS
0-30 dB: Whisper, quiet library
40-60 dB: Normal conversation, office
70-85 dB: Traffic, vacuum cleaner (prolonged exposure can affect hearing)
90-120 dB: Concert, power tools, jet engine (hearing damage risk)

🔒 100% PRIVATE & OFFLINE
All measurements are processed locally on your device. No account required, no data uploaded to the cloud.

📲 HOW IT WORKS
1. Open the app and allow microphone access
2. Calibrate for your device (recommended for first use)
3. Watch real-time dB readings on the dial and graph
4. Set a warning threshold if you want alerts
5. Save your history or recordings for later

Download the most accurate free sound meter and decibel meter app for Android — measure, monitor, and protect your hearing today.