Sound meter : SPL & dB meter

11.5

KTW Apps

4.62

51,945 reviews

5,000,000+
Downloads

Free

Measure environment noise to avoid noise pollution from damaging yours hearing

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4.62 · 51,945 reviews · 5,000,000+ downloads

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Sound Meter (SPL & dB meter) helps you measure environmental noise with real-time charts and detailed decibel metrics using your device’s microphone. It holds TOOLS rankings in SE (#106), PL (#145), and CH (#159) with a solid rating from thousands of reviewers. With more than 5,000,000+ total downloads and 91K downloads in the last 30 days, it shows strong, ongoing global interest.

Pros & Cons

Free to use with no upfront cost
Real-time charts and detailed dB metrics (min/max/avg)
Session timing, reset, and simple controls
Strong global presence with high rating and country rankings

Accuracy depends on the device microphone and is not a professional SPL meter.

About Sound meter : SPL & dB meter

Sound meter : SPL & dB meter is a tools app developed by KTW Apps.

Download Statistics

Sound meter : SPL & dB meter has been downloaded 5.9 million times. In the last 30 days, the app was downloaded 91 thousand times. It is ranked in the top 100 tools apps.

User Ratings

Sound meter : SPL & dB meter is rated 4.62 out of 5 stars. The rating is based on 52 thousand ratings.

App Information

Sound meter : SPL & dB meter is FREE to download. The APK download size is 6.35 MB. The latest version available is 11.5. The last update was on August 22, 2026.

Technical Requirements

Sound meter : SPL & dB meter requires Android 5.0+ or higher. The app has a content rating of Everyone. The app has been available on Google Play December 2018.

Description

Sound Meter is also known as Sound Pressure Level meter (SPL meter) , noise level meter, decibel meter(dB meter), sound level meter or soundmeter.

More data about Sound meter : SPL & dB meter

Price	Free to download
Total downloads	5.9 million
Recent downloads	91 thousand
Rating	4.62 based on 52 thousand ratings
Ranking	Highly ranked
Version	11.5
APK size	6.35 MB
Number of libraries	19
Designed for Android	5.0+
Suitable for	Everyone
Ads	Contains ads

App Performance Report

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Alternative downloads for the Sound meter : SPL & dB meter app

Sound meter : SPL & dB meter compared with similar apps

Common keywords of similar apps

Soundmeter Actual Quiet Avoid Adjust Reset Button Provided Meter Db Sound Noise Level Decibel Spl Measure Pressure Test Environmental Environment Hearing Microphone Decibels Time Display Measuring Health

Keywords missing from this app

App Measurement Levels Detector Frequency Values Current Features Reference Loud Easily Tool Perfect Analyzer Real Easy Detect Data Audio Professional Volume Camera Free Pollution Phone Accurate Device Monitoring Smart Human Work

Google Play Rating history and histogram

Rating history

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42K

5.4K

1.2K

460

2.6K

Downloads over time

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Sound meter : SPL & dB meter has been downloaded 5.9 million times. Over the past 30 days, it averaged 3 thousand downloads per day.

Changelog of Sound meter : SPL & dB meter

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Developer information for KTW Apps

KTW Apps

ktwapps@gmail.com

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Comments on Sound meter : SPL & dB meter for Android

★★★★★ Noval Nuralif · Aug 9, 2026

Love the apps, very clean UI and doesn't push you with apps to use it. While it doesn't measure accurately for the sound level above 100db since it has something to do with the hardware, it is still good for normal test.

★★★★★ sweet igit · Jul 12, 2026

This db meter is more or less accurate considering this is free I compared this with the db meter I bought, and they are almost the same. I gave this 0ne 5star because for a free app and it's closer to the db meter I got.

★★★★★ JC Carey · Jul 23, 2026

Aces! I like this app. It's accurate. It has a description of items in the sound range it was registering. For example: I'm in a quiet room with grandfather clock ticking and if you listen carefully you can hear the low roar of the city in the background. The app is registering clock ticking, quiet room and a bit above. Excellent calibration. Speaking of calibration you can adjust it too. Someone took some time with this app. Thank you

★★★★★ Adam Cook · Sep 4, 2026

Installed easily, works really well and the ads are unobtrusive at the bottom of the app. I did run through the advertiser list and excluded everything that was possible though. But that only took a few minutes. A good app.

★☆☆☆☆ E.T. Saffon · Jul 13, 2026

Inaccurate. Not even close. An exhaust without a muffler was quieter that with, lol. It was 5x louder in person. Don't waste your time.

★☆☆☆☆ Miguel Salgado · Jul 12, 2026

Not the least bit accurate. I installed this app to test my stero SPL, and it measures very low around 80 to 90 even when it should be at 140db. The gauge moves to much

★☆☆☆☆ Brack 909 · Aug 13, 2026

Wildly inaccurate. If you believed it's readings you would need earplugs whilst putting your socks on.

★☆☆☆☆ Tom W · Jul 19, 2026

Readings on 2 mobiles side-by-side gives completely different results. Need to calibrate them first.

★☆☆☆☆ Sonny · Jul 19, 2026

Good app would be great if it didn't replace the buttons at the bottom of the screen with a stupid ad!

Google Play Rankings for Sound meter : SPL & dB meter

Top rankings

Rank	Country	Category	List
50	Sweden	Tools	Top Free
95	Switzerland	Tools	Top Free
116	Poland	Tools	Top Free
165	Czech Republic	Tools	Top Free

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Ranking history in Sweden

Ranking history

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Technologies used by Sound meter : SPL & dB meter

14 permissions · 19 libraries

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Trust & Safety: The app requests standard permissions for audio input (RECORD_AUDIO), connectivity (INTERNET, ACCESS_NETWORK_STATE), storage (READ_EXTERNAL_STORAGE, WRITE_EXTERNAL_STORAGE), and foreground services, along with advertising/analytics identifiers (AD_ID), in-app billing, install referrer services, and a dynamic receiver permission. This permission set supports measurement features, ads, and monetization while following typical Android app safety practices.

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