Android · Sound Level Meter
Precise, private
sound measurement.
Sonometer turns your phone into a real acoustic instrument — live dB(A) readings, spectrum analysis, and a running record of the sound around you. Every measurement is made and kept on your device.
Coming soon to Google Play.
What it does
A real instrument, not a toy meter.
Live dB(A) measurement
A large, legible readout tracks sound pressure level in real time, with fast and slow response modes.
Spectrum analysis
See the frequency content of the sound around you, updating live as levels rise and fall.
Patterns & history
Review how sound exposure changes over the day and week, with dose and average-level views.
Session recording
Capture a measurement session over time and export it when you need the data elsewhere.
Export
Get your readings out in a usable form for reports, logs, or your own analysis.
Home-screen widget
Glance at the current sound level without opening the app.
Privacy
Nothing leaves your phone.
- — Sonometer runs entirely on-device. Audio is analysed locally, in real time, purely to compute a sound level.
- — The app has no network permission. It is technically incapable of sending data anywhere.
- — No accounts, no analytics, no advertising identifiers, no crash reporting, no tracking of any kind.
- — Anything you choose to save stays in local storage on your device, and you can delete it at any time.
Full details in the privacy policy.