Sound Meter: Noise & dB AI

Measure noise in real time, protect your hearing and sleep better. Live dB gauge, spectrum view, sleep reports and a noise map — beautifully designed.

Measure, understand, and improve the sound around you.

Sound Meter turns your phone into an accurate sound level meter and decibel meter. Check noise levels at home or at work, watch your daily noise exposure, monitor your sleep environment, and map the noise around you — all in one beautifully designed app.

REAL-TIME DECIBEL METER • Instant dB readings with min, max and average sound level • Color-coded gauge from whisper-quiet to dangerously loud • Calibration tool for more accurate measurements • Save recordings and export your measurements as CSV

LIVE GRAPH & SPECTRUM VIEW • Follow noise fluctuations on a live waveform graph • Spectrum view visualizes sound energy across bass, mids and treble • Spot the character of the noise around you at a glance

SLEEP NOISE MONITOR • Track noise levels through the night • Wake up to a clear sleep report with a noise timeline and quality score • Find out what actually disturbs your sleep

NOISE ALERTS & BABY-MONITOR-STYLE ALARM • Get an alert the moment noise crosses your chosen threshold • Baby and security presets with vibration, sound and push notifications

HEARING HEALTH • Daily noise dose tracking based on NIOSH guidance • See how much safe listening time is left at the current level • Clear warnings before your exposure becomes harmful

SOUND RECOGNITION (BETA) • Estimates what you're hearing: speech, music, traffic, rain, construction and more • Works on-device, with confidence scores and a detection history

NOISE MAP & ENVIRONMENT RATING • Save measurements with location and build your personal noise map • Explore your area on an interactive map and find quiet places • Get a noise quality score for your current environment

MORE • dB camera overlay for photos • Home screen widget with live readings • Measurement history with detailed statistics • Available in 8 languages

FREE & PREMIUM The core decibel meter is free: sessions up to 2 minutes and up to 5 saved recordings. Premium unlocks unlimited recording, the live graph and spectrum view, sleep monitor, noise alarm, sound recognition, noise map, environment rating, unlimited history and an ad-free experience. Try Premium free for 7 days.

Payment is charged to your Apple ID account at confirmation of purchase. The subscription renews automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://sites.google.com/view/soundmeter1-privacy