Decibel X - Pro Sound Meter

9.3.8

SkyPaw Co., Limited

3.91

12,224 reviews

5,000,000+
Downloads

Free

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

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iOS version

Decibel X turns your Android device into a calibrated professional sound level meter with ITU-R weightings (ITUR 468, A and C). It delivers real time SPL readings, spectrum analysis, and a feature rich history with export options, making it a versatile tool for professionals and enthusiasts alike. Not ranked in any top lists, it has a broad user base with 5,000,000+ total downloads and 56K new installs in the last 30 days.

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.

Download Statistics

Decibel X - Pro Sound Meter has been downloaded 6.2 million times. In the last 30 days, the app was downloaded 56 thousand times.

User Ratings

Decibel X - Pro Sound Meter is rated 3.91 out of 5 stars. The rating is based on 12 thousand ratings.

App Information

Decibel X - Pro Sound Meter is FREE to download. The APK download size is 8.23 MB. The latest version available is 9.3.8. The last update was on August 5, 2026.

Technical Requirements

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

Description

"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.

More data about Decibel X - Pro Sound Meter

Price	Free to download
Total downloads	6.2 million
Recent downloads	56 thousand
Rating	3.91 based on 12 thousand ratings
Ranking	Not ranked
Version	9.3.8
APK size	8.23 MB
Number of libraries	25
Suitable for	Everyone
Ads	Contains ads

App Performance Report

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Alternative downloads for the Decibel X - Pro Sound Meter app

Decibel X - Pro Sound Meter compared with similar apps

Common keywords of similar apps

Dba Device Calibrated History Room Devices Recording Graph Standard Milliseconds Range Reference Turns Pre Weightings Itu Beautiful Accuracy Carefully Precision Fft Analysis Text Mode Trimming Current Average Clear Reading Sound Time Meter Real Decibel Frequency Level Spl Quiet Display Db Professional Data Record Calibration Values

Keywords missing from this app

Noise Measure App Levels Measurement Analyzer Audio Decibels Spectrum Test Pressure Hearing Perfect Features Tool Environmental Microphone Analyze Measuring Measurements Monitoring Accurate Recent Check Environment Detector Easy Actual Generator Monitor Hz Free Volume Phone

Google Play Rating history and histogram

Rating history

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7.2K

1.3K

930

730

Downloads over time

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Decibel X - Pro Sound Meter has been downloaded 6.2 million times. Over the past 30 days, it averaged 1.9 thousand downloads per day.

Changelog of Decibel X - Pro Sound Meter

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Developer information for SkyPaw Co., Limited

SkyPaw Co., Limited

contact@skypaw.com

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Comments on Decibel X - Pro Sound Meter for Android

★★★★☆ 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.

★★★★★ Harper · Mar 14, 2026

1 trillion times better than voli, delete voli if you have it

★★★★☆ 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 😊

★★★★★ sahidul alam · Jul 14, 2026

Very good app, easy to use and read the frequencies almost correctly

★★★★★ 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.

★★★★★ Olav Døvre · May 27, 2026

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

★☆☆☆☆ James S · Jun 28, 2026

How is this app legal, and allowed to be on the app store!!! I installed a few decibel measuring apps at one time, including this one. Apparently I completely unknowingly agreed to a £32.99 yearly subscription. The first time I knew about it was when the money left my account. In every other app I've ever used, there is a process and an agreement screen if you wish to subscribe. I am absolutely certain I did not do any such thing.

★☆☆☆☆ Stephanie · Feb 12, 2026

The support feature does not provide support. App says it's recording, but nothing is saved. Don't waste your time.

★☆☆☆☆ 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.

★☆☆☆☆ 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

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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Trust & Safety: Trust and safety: The app requests common Android permissions including location, camera, microphone, and storage, plus ad IDs and license verification. It is ad-supported with an option to remove ads via a one-time purchase. This pattern is typical for feature-rich utility apps; review permissions if privacy is a concern.

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