dB Meter: Sound Level

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.