"The best way to meter sound levels" - AppAdvice

Decibel Meter Pro is full of features sound level meter with exclusive accuracy of measurements and integrated spectrum analyzer. Calibrated with professional dB meter.

The world is a noisy place: cars, power tools, crowds, machinery, and other common sources produce amounts of noise that can, with continued exposure, lead to permanent hearing loss. Sound level meters are useful for anyone who wants to avoid exposing their ears to harmful noise levels, but who wants to spend hundreds of dollars on one?

dB Meter is free app which provides professional-quality measurement results, calibrated using an actual Nor140 high-precision decibel meter. With dB Meter, you can measure ambient noise levels, save your measurements and their locations, and share your measurements with others. dB Meter couples utility with stylish design and a polished user experience: a powerful tool in a sleek package, and at a tiny fraction of the cost of professional sound level meters.

(Please note that dB Meter soundmeter app is not a replacement for professional devices and should be used for personal purposes only.)

● Saves location data for each measurement.

● Save measurements with custom names and rename existing measurements.

● Export measurements in CSV or Audio format.

● Allows you to save, export and play back recorded measurements.

● Highly accurate measurements.

● Integrated Fully Functional Spectrum Analyzer

● Octave Band Real Time Analyzer

● FFT Plot (Fast Fourier Transform)

● Linear and logarithm scales

● Up to 16384 FFT size

● A lot of available window functions

● Tracking for max value

● Max and Min for any selected frequency

● Stunned graphics

Have any questions or suggestions? Write to us:

DB Chart
150-160 dB = Eardrum rupture
140 decibel = Aircraft carrier deck.
130 dB = Jet take-off (100 meters), gun blast at close range.
120 dB= Human pain threshold, loud rock concert.
110 decibel = Serious hearing damage if sustained for more than 1 hour.
100 dB = Serious hearing damage if sustained for more than 8 hours.
90 decibel = Likely hearing damage if sustained for more than 8 hours.
80 decibel = Potential but unlikely hearing damage if sustained for more than 8 hours.
70 dB = Just annoying, but probably safe.
60 dB= Typical conversational volume.
50 dB = A quiet, library conversation.
40 decibel = A whisper.
30 dB= Barely audible sound.
20 decibel= Threshold of human hearing.

What's New

Version 2.9.1

• Fixed a bug that caused tutorial to run incorrectly on the first use.
• Fixed a bug that, in rare cases, made it impossible to go back from the settings or records page to the main screen.
• Fixed a bug that caused the app to crash when showing subscription info.

Please be sure to rate this new version on the App Store and leave a review.
Your feedback is greatly appreciated and helps us continue updating dB Meter!

Ratings and Reviews

4.6 out of 5

3.1K Ratings

3.1K Ratings

So far so good!


I purchased the pro version as I am an audio engineer and would like to have something convenient as a quick reference rather then pulling out my larger, more professional tools. So far this has been pretty accurate and quite helpful. I would like to see some adjustability on the “over limit” marker. There are times I am given a dB limit to follow and being able to set this for when the meter reaches “over” would be nice. Maybe even some other larger notification and options to turn this on and off? A couple tweeks and this app would be amazing! Solid product for sure!

Developer Response

Thank you so much for your review and for the suggestion. I'll implement such feature in upcoming updates. Next will be sonogram mode and some ui tweaks and after that i'll have enough time to play with this "over limit" feature. I believe it will be useful for everyone. Thank you once again!

Pretty good

Ethan Ackland

Overall a good app to find the dB level of a room or area. I am slightly disappointed in the fact that you had to hit a record button to start the dB measurement. However i received a message from the developer saying that by setting the app to auto start, it would solve that problem! I found the app fairly accurate considering the lacking microphones in most smartphones. I do recommend this app to anyone looking for a general sense of dB level in any indoor or outdoor situation.

Developer Response

Hi, thank you for using dB Meter and for your review. You can set it up to not press record button to start measurements. Just go to settings and switch "Auto-start on launch" to on.

Just one recommendation...


I love this app. It's one of the most responsive decibel meters I've seen with a sexy, lightweight interface. It looks good, has powerful functionality, and great customization. I can not emphasize how much I love this interface. As a music major and car hobbyist, this app is my lifeline.

With that said, I wish the upgrade option field was more clear. I wasn't initally sure what features were in each package and how they compared to each other. If there was a chart to compare it would be great. Or a package to upgrade to all features. I would!

I bought the Pro and soon will likely get the other app too. I think that's how the upgrades work.

Sweet app!

Developer Response


thank you for using dB Meter and for your amazing review. I'm working on clear UI to explain all features and differences between pro modes. It will be live somewhere within a month or so. Thank you once again!


Vlad Polyanskiy
69.1 MB
Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.
English, French, German, Japanese, Portuguese, Russian, Simplified Chinese, Spanish, Traditional Chinese
Age Rating
Rated 4+
© Vlad Polyanskiy
In-App Purchases
  1. Pro Mode $2.99
  2. Spectrum Analyzer Pack $3.99
  3. dB Meter Pro $1.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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