Turn your iPhone into a real-time dB(A)/dB(C) sound level meter — peak, average, and Leq at a glance. Then track your daily noise exposure. All on-device, no account.
Download on the App StoreBuilt for anyone asking how loud it is — noisy neighbors, concerts, job sites, nurseries, and bedrooms.
A live dB(A)/dB(C) readout with a scrolling waveform — peak, average, max, and Leq, the numbers a real meter shows.
Most apps stop at a number. Decibel logs your daily NIOSH/OSHA noise dose and warns you when sustained sound crosses 85 dBA.
Recorded in measurement mode with a calibration offset for honest readings. Every measurement is computed on your iPhone — even in airplane mode.
Three steps. From "is this too loud?" to a logged answer.
Open the meter and the live dB(A) reading starts instantly. No setup, no sign-up, no waiting.
See peak, average, and Leq on a live waveform, plus a "how loud is this?" scale from a whisper to a jet engine.
Save the session to history and watch it roll into your daily noise-dose timeline. Export a CSV or PDF report anytime.
About half the price of the big sound meter apps — and no weekly traps.
A real-time sound level meter and noise-exposure tracker that runs entirely on your iPhone — fair pricing, no weekly traps.
Download on the App StoreDecibel is not a certified Type 1 or Type 2 sound level meter and is not a medical or hearing-diagnostic device. iPhone microphones are factory-calibrated and typically read within a couple of dB of professional meters — but for legal, occupational, or clinical decisions, use certified equipment.