Sound meter : SPL & dB meter helps you measure environmental noise with your device’s microphone, delivering real-time dB readings and min/max/avg values. It has a broad user base with 5,000,000+ downloads and a rating of 4.59 from 53,001 reviewers, ranking in TOOLS across SE (#101), PL (#145), and CZ (#194).
Pros & Cons
Real-time SPL readings with a chart for easy monitoring
Displays min, max, and average dB values per session
Free to use and accessible on most devices
Lightweight tool suitable for quick environmental noise checks
Mic-based readings can vary from professional SPL meters; calibrate expectations accordingly.
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 6.1 million times. In the last 30 days, the app was downloaded 95 thousand times. It is ranked #105 in tools.
User Ratings
Sound meter : SPL & dB meter is rated 4.59 out of 5 stars. The rating is based on 53 thousand ratings.
App Information
Sound meter : SPL & dB meter is freely available from Google Play. The APK size is 6.35 MB. The latest APK version available is 11.5. The last update was on August 22, 2026.
Technical Requirements
Sound meter : SPL & dB meter requires Android 6.0+ or higher. The app has a content rating of Everyone. The APK has been available on Google Play since December 2018.
Description by KTW Apps(from Google Play)
Sound Meter is also known as Sound Pressure Level meter (SPL meter) , noise level meter, decibel meter(dB meter), sound level meter or soundmeter.
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Comments on Sound meter : SPL & dB meter for Android
★★★★★Wayne Hossenlopp· Sep 20, 2026
This is an excellent tool to check overall sound level or to see what the general frequency response of an audio source is
★★★★★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.
★★★★★Leon van Rooyen· Oct 15, 2026
I have hyperacusis (the result of a stroke and can hear exceptionally well) and stay near a shopping center. I need an acoustic glass sliding door and windows that prevents the loud traffic, the reversing beep beep sounds, offloading sounds and motorcycles from waking me up at 04h30 in the morning when background noise are minimal. So I downloaded this App, and what an experience. I can now tell what the frequencies are so that my door and windows can be made to the specific frequencies.
★★★★★Paul Riley· Oct 5, 2026
Accurate and easy to use and lets you save data to your phone, also compares your sounds to outside sounds brilliant
★☆☆☆☆David Brook· Sep 20, 2026
Tried this app for an hour or two until a full page warning came up stating my phone had been infected, and I needed to scan it. The only way I could close the page was to click on a button to enable that. A 'cancel' button was greyed out. Clicking took me to Google play store to download an app. I ignored that and ran both Samsung's and Nortons apps. No problem was found. Looks like an attempt to advertise a product using scare tactics. I deleted the app.
★☆☆☆☆Sam· Aug 30, 2026
Riddled with ads and dark design patterns that make you more likely to unintentionally tap/open ads e.g. they remove the bottom back and menu buttons on android, etc
Google Play Rankings for Sound meter : SPL & dB meter
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Trust & Safety: The app uses your device microphone to measure environmental noise and requires network and ad-related permissions (e.g., INTERNET, AD ID, and related services) for online features and ads. It also requests storage and wake-lock permissions. These are standard for a free measurement app; users should review permissions in settings and grant only what is necessary for their use.
Each subscription will automatically renew 3 days before the expiration date for
the same time period. Subscriptions can be cancelled at any time before the renewal.
