Loading…
CompareOpen in Google Play
This app isn't in any of our charts yet.
Recording now keeps the screen on, so long sessions no longer stop when the phone sleeps. New calibration offset in Settings. The graph and PDF show where the app wasn't listening, the timer shows hours, and deleting a recording session is blocked. Pro purchases restore properly on a new phone. The free version now shows a small banner; Sound Meter Pro has no ads.
Decibel meter with noise logging over time. No ads. Export as proof.
Most sound meter apps show you a number and stop there. Sound Meter logs it — so you can prove what you heard, not just glance at it. Whether it's a noisy neighbour, a landlord dispute, a workplace safety concern, or checking a nursery is quiet enough, a single reading rarely settles anything. A record does. ★ Real-time decibel meter Point your phone and see the noise level instantly, with a clear quiet/moderate/loud/dangerous reading based on published WHO, EPA and NIOSH noise-exposure guidelines — explained in plain language, not just a number. ★ Log a session, not just a glance Start a session and Sound Meter tracks minimum, average and maximum noise over time — minutes or hours. Add a note. Come back later and see exactly what happened, when. ★ Export as proof Turn a logged session into a PDF with the graph, stats and your note — ready to attach to an email or a complaint. Or export the raw data as CSV. ★ No ads. Ever. Free means free — no interruptions, no "watch an ad to continue." One optional one-time unlock adds unlimited history and export. Pay once, or don't pay at all. ★ Fully offline No account, no internet connection required, no data sent anywhere. Everything is processed on your device and stored locally. ★ Honest about its limits Phone microphones aren't calibrated lab equipment, and we say so — this is a reliable estimate for everyday use, not a certified measurement for legal compliance. Free • Live decibel meter with WHO/EPA/NIOSH-referenced zones • Session logging with graph • Last 3 sessions or 24 hours of history • Notes on every session • Zero ads Sound Meter Pro — one-time unlock • Unlimited session history • PDF export — ready to share as proof • CSV export — raw data for your own records • No subscription, ever — pay once, keep forever Sound Meter: decibel meter, noise meter, sound level meter, dB meter, noise log, noise level app, noisy neighbor app, sound pressure level.