dB Meter: Sound Level

Measure noise instantly with a beautiful, accurate sound meter. Now with dBA, a live Dynamic Island, a daily noise-exposure dose, widgets, and an Apple Watch app.

dB Meter turns your iPhone into a fast, beautiful, and accurate sound-level meter. Measure the noise around you in real time — at home, at work, at a concert, or anywhere you want to protect your hearing.

No ads. No tracking. Completely free.

LIVE MEASUREMENT • Real-time decibel readings on a precise speedometer-style gauge • Smooth, sound-reactive animations that come alive with the noise around you • Min, average, and max stats plus a rolling 60-second graph

PROFESSIONAL ACCURACY • A-weighting (dBA) to match how the human ear hears, like professional meters • Adjustable calibration so readings fit your device • Leq (equivalent continuous level) for recorded sessions

PROTECT YOUR HEARING • Clear noise categories from Very Quiet to Dangerously Loud • Instant warning when levels become risky (around 85 dB) • Daily noise-exposure dose based on the NIOSH 85 dB / 8-hour limit

RECORD, TRACK & SHARE • Save measurements and review them with charts and a map • Tag measurements with your location (optional) • Export data as CSV • Share a gorgeous measurement card to social media

EVERYWHERE YOU NEED IT • Live Activity in the Dynamic Island and on your Lock Screen while measuring • Home and Lock Screen widgets showing your latest reading • A companion Apple Watch app to measure right from your wrist

PRIVATE BY DESIGN • Audio is never recorded or stored — only the loudness is analyzed, instantly • Your measurements stay on your device • No ads, no analytics, no third-party tracking

dB Meter provides approximate readings for everyday awareness and is not a certified measurement instrument.