Decibel X - Pro Sound Meter

9.3.9

SkyPaw Co., Limited

4.10

12,951 reviews

5,000,000+
Downloads

Free

Turns your device into a professional sound level meter (dBA SPL).

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Screenshots by SkyPaw Co., Limited, from the Google Play listing

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Pros & Cons

Calibrated measurements with ITU-R weightings for accurate readings
Comprehensive spectrum analysis with real-time FFT and BAR graphs
Extensive history management with export options (PNG/CSV) and fullscreen playback
NIOSH/OSHA dosimeter standards for occupational safety

No current top-list ranking limits visibility in some rankings
Free tier is ad-supported (one-time in-app purchase available to remove ads)
Permissions include location, camera, and microphone, which may raise privacy considerations

About Decibel X - Pro Sound Meter

Decibel X - Pro Sound Meter is a tools app developed by SkyPaw Co., Limited.

Install Statistics

Decibel X - Pro Sound Meter has been installed 6.3 million times. In the last 30 days, the app was installed 47 thousand times.

User Ratings

Decibel X - Pro Sound Meter is rated 4.10 out of 5 stars. The rating is based on 13 thousand ratings.

App Information

Decibel X - Pro Sound Meter is freely available from Google Play. The app size is 8.19 MB. The latest version available is 9.3.9. The last update was on September 18, 2026.

Technical Requirements

The app has a content rating of Everyone. The app has been available on Google Play since June 2014.

Decibel X - Pro Sound Meter is made and published by SkyPaw Co., Limited. AppBrain is an independent app data site and isn't affiliated with SkyPaw Co., Limited. The app name, icon, screenshots and description belong to SkyPaw Co., Limited and are shown as published on Google Play.

Description by SkyPaw Co., Limited (from Google Play)

"Decibel X" is one of very few sound meter apps on the market that has highly reliable, pre-calibrated measurements and supports frequency weightings: ITU-R 468, A and C.

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Decibel X:dB Sound Level Meter

SkyPaw Co., Limited

4.6

Free

163.6K ratings

Alternatives to Decibel X - Pro Sound Meter

Google Play Rating history and histogram

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Installs over time

Decibel X - Pro Sound Meter has been installed 6.3 million times. Over the past 30 days, it averaged 1.6 thousand installs per day.

Changelog of Decibel X - Pro Sound Meter

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Developer information for SkyPaw Co., Limited

SkyPaw Co., Limited

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Comments on Decibel X - Pro Sound Meter for Android

★★★★★ Olav Døvre · May 27, 2026

Beautiful, it even measures frequency and what frequency has what intensity. Love it

★★★★★ Timothy Pratt · Aug 20, 2026

It did what I wanted it to do! I used it to test an ultrasonic animal deterrent. Verified it was working at the upper frequencies. It appears the max that it can detect with the phone's microphone is approximately 22Khz 110db

★★★★★ Stephen · Aug 1, 2026

Did exactly what I needed it to do. I love the 5-sec video record feature that displays the sound levels. I was able to provide a local manufacturing plant proof that the noise level from coming their factory was in tolerable.

★★★★☆ Sheikh Lab · May 11, 2026

Hi The app is very good. 1. Can it give me the csv files of decimal values without saving voice recordings. For example can we disable the voice recording feature but still get the csv file with readings 2. Can it record 24/7 ie non-stop and for how many days 3. Is voice saved only on my device or is it uploaded to your servers too.

★★★★☆ Emman Cian · Jun 1, 2026

Yoo, this app is perfect the Spectrogram for analyzing sounds and effects, but can you add files to put on the spectrogram and other audio analyzers on this app? I Appreciate it 😊

★☆☆☆☆ Andrew D. Royappa · Jun 10, 2026

When you rotate your phone while measuring sound level, it screws up the sound measurement after rotating back (measures everything 150+ dB constantly). Have to fix by clearing storage and cache. Been doing this for several months

★☆☆☆☆ Ray Ross · Nov 2, 2026

This is actually not a Decibel Meter, it is a Diameter a device that your support to clip or wear to document how moving through different sounds effect you. So to have it in the form of a phone will definitely have some accuracy issues. Sky Paw does offer a Decibel Meter that cost about $47 and for a phone app I think it does a good job for a phone app, it has at least recognized low frequency infrasound (rustling leaves) that has been causing me issues in my apartment, which is step-1

★☆☆☆☆ Benson Tam · Aug 1, 2026

I noticed this app was accessing my microphone even when I wasn’t actively using it. A sound meter obviously needs microphone access while measuring noise, but there’s no good reason for it to stay active in the background after I’ve finished. This is a serious privacy concern and immediately made me uninstall the app. The developer needs to clearly explain when the microphone is used and ensure it shuts off completely when the app isn’t measuring sound.

★☆☆☆☆ Dan Harding · Oct 13, 2026

There's so much bloatware attached to the app I couldn't even get to the decibel meter.

Google Play Rankings for Decibel X - Pro Sound Meter

This app is not ranked

Technologies used by Decibel X - Pro Sound Meter

20 permissions · 25 libraries

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Decibel X - Pro Sound Meter

Turns your device into a professional sound level meter (dBA SPL).

Pros & Cons

About Decibel X - Pro Sound Meter

Install Statistics

User Ratings

App Information

Technical Requirements

Also available on the App Store

Alternatives to Decibel X - Pro Sound Meter

More from SkyPaw Co., Limited

Google Play Rating history and histogram

Installs over time

Changelog of Decibel X - Pro Sound Meter

Developer information for SkyPaw Co., Limited

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Comments on Decibel X - Pro Sound Meter for Android

Google Play Rankings for Decibel X - Pro Sound Meter

Technologies used by Decibel X - Pro Sound Meter