Sound Decibel Meter

Contains adsIn-app purchases
4.6
573K reviews
10M+
Downloads
Content rating
Everyone
Enjoy this app for free, plus many more free of ads and in-app purchases, with a Google Play Pass subscription. Learn more
Screenshot image
Screenshot image

About this app

Want to measure sound level? This is smart sound level meter app for Android!
Our decibel meter uses your built-in microphone to measure sound volume in decibels (dB) and also displays samples on helpful graph.

NOTE: Microphones in most devices are aligned to human voice and the maximum values are limited by the hardware. Very loud sounds (~90 dB and more) may not be recognized. Automatic gain control used in some devices may interfere with the operation of this noise meter.


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Updated on
Oct 13, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

4.6
562K reviews
brad johnson
January 29, 2026
If I had a decibel meter that I could compare this to and calibrate it I wouldn't need to download an app, so .. I installed a few different decibel matter apps to see if they would all measure the same or give different readings. So far they all give me the same readings including this one. so it works just as well as the rest. I only have 4 stars because there is an awful lot of ads. I think they could trim that down a little too make it a little more user friendly.
7 people found this review helpful
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Nic Sievers
December 5, 2024
Ads, ads, and more ads. I don't mind an ad to support something, but this might be the most ad intensive app i have ever used. Banner ad at the bottom, then every 30 seconds, a full screen ad comes up, and guess what? Most of the those have sound! That, of course, breaks up your sound testing. Takes two clicks to close the ad, tapping on your phone will record sound and mess with your capture graph again. Insane. No thanks.
119 people found this review helpful
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Lex Starwalker
September 29, 2024
It's ok. I don't know how accurate it is, as I don't have a way to verify its readings. The graph function sounded really cool until I found out you can only see the last 60 seconds, which makes the graph useless. Also no way to save the graph that I can see. Also can't customize the appearance at all. So if you want to see dBs in real time, it works for that, but that's it. There are other free dB apps with more features.
30 people found this review helpful
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What’s new

Usability improvements and minor bug fixes.