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Sound Meter is in the 4th set of the Smart Tools collection.

Have you ever suffered from the noise of the neighbors?
SPL(sound pressure level) meter app uses your embedded microphone to measure noise volume in decibels(db), and shows a reference.

REMEMBER! Most smartphone microphones are aligned to human voice (300-3400Hz, 40-60dB). Voice calls do not require high-performance microphones.
Therefore the maximum value is LIMITED by manufacturers, and very loud sound(100+ dB) cannot be recognized. Moto G4 (max.94), Galaxy S6 (85dB), Nexus 5 (82dB) ...

See 6th images. I calibrated major Android devices with an actual sound meter (dBA). You can trust the result in routine-noise levels (40-70dB). Please use it as an auxiliary tool.

* Main features:
- Upside down mode
- Level notification
- Line-chart duration
- Material design

* Pro version added features:
- No ads
- Vibrometer
- Statistic menu
- CSV file exporting

* Do you want more tools?
download [Smart Meter Pro] and [Smart Tools] package.

For more information, watch YouTube and visit the blog. Thank you.

From version Sound Meter 1.7.9:

- v1.7.9 : Minor fix
- v1.7.8 : Support for Android 11

(Android 2.3+)
Latest: 1.6.10 on March 29, 2017
All versions
May 2, 2021
April 16, 2021
March 25, 2021
December 4, 2020
October 22, 2020
September 18, 2020
September 5, 2020
June 12, 2020
April 24, 2020
April 23, 2020