dB vs dB Decibel

How loud is it right now? dB-Meter turns your iPhone into a clear and easy-to-read sound level meter. This completely rebuilt version combines the familiar retro style of the original app with a modern digital measurement view. TWO VIEWS, ONE MEASUREMENT • Classic analog gauges in the original retro design • Modern digital view with animated dB display • Live VU meter with peak indication • Smooth 30-second history graph EVERY IMPORTANT VALUE AT A GLANCE • Current sound level in dB • Slowly moving average • Session minimum and maximum • Peak value with optional peak hold • Fast or smooth needle response • Reset the current measurement session Use it to compare sound levels at home, in the office, on the go, or while listening to music. A CLASSIC, REBUILT dB-Meter first launched more than 13 years ago and has been downloaded over 200,000 times. Version 2.0 was rebuilt for current iPhones without losing the character of the original. AVAILABLE IN 18 LANGUAGES The app language can be changed directly in the app, independently of the system language. Note: Measurements are based on the microphone of your device and are intended as an approximate reference. The app is not a calibrated or certified sound level meter and must not be used for official occupational safety measurements.

dB Decibel is an iPhone sound level meter that measures ambient noise in real time in dB(A) with peak hold, and flags when a sound falls below the microphone floor or clips the mic so you can trust every reading. Sound measurement runs on your device with no subscription, and audio is never recorded or sent. Most meters read 50–60 dB in dead silence and cap loud sources. dB Decibel is honest: it tells you when you are below the mic floor and when a sound clips the mic, so you trust every reading. One fair price. No subscription. Sound measurement runs on your device. Audio is never recorded or sent. WHAT'S FREE - Live dB(A) sound level meter with peak hold - Clipping + near-silence detection — honest readings - Real pro metrics: Leq, L10 and L90 - Safe-listening time estimate (informational) - Dominant frequency, min/avg/max, live graph - "How loud is it?" reference scale - One-tap guided calibration, landscape, share card - Start/stop from Siri, the Action Button and Control Center dB DECIBEL PRO — one-time purchase - Evidence Mode: timestamped noise-event log with a landlord/HOA-ready PDF and CSV - Live Sound ID: on-device "what is this noise?" - Live Activity + Lock Screen / Home Screen widgets - Exposure & dose: LAeq, 8-hour TWA, daily-dose % (informational) - Octave-band analysis and a test-tone generator - Sleep Soundscape: overnight room-noise timeline - External & Bluetooth mic support with per-input calibration - Real-time spectrum analyzer, loud-level alerts, A/C/Z weighting, fine trim - Session history with auto-save, and removes ads No subscription. Ever. Pay once, keep it forever. Note: dB Decibel is an environmental sound-measurement tool, not a hearing-protection, occupational or medical device. Dose, exposure and safe-time figures are informational; readings are approximate and uncalibrated. Where available, you can explore recommendations for our other apps. They load online; views and taps are counted as daily totals without personal profiles or user/device identifiers. Our privacy policy explains this feature and existing advertising. Privacy Policy: https://db-decibel.vercel.app/privacy