Microphone use
Used only while you are measuring. No audio is recorded or sent to Lucky Tools servers.
Real-time sound level on your phone
Live dB readout with session min, max and average, plus calibration. Microphone is used only while measuring — audio is not recorded or uploaded. Built offline-first by Lucky Tools.
Live dB
Calibration
No account
Android
Two apps on Google Play
| Decibel Meter (Free) | Decibel Meter Pro | |
|---|---|---|
| Package | com.luckytools.decibel_meter |
com.luckytools.decibel_meter_pro |
| Price | Free | One-time paid (e.g. £0.99) |
| Ads | Banner (AdMob) | No ads |
| Meter | Full features | Same full features |
| Subscriptions | None | None |
Honest limits
Phone mics are not lab SPL meters. Use for relative noise levels, not certified measurements.