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Decibel Meter

By Future Apps Inc.

This app is only available on the App Store for iOS devices.


Decibel Meter has been updated to be fully compatible with iOS 4, and multitasking aware. We have also updated Decibel Meter to work with the iPod touch! So if you have an iPod Touch with an internal or external mic you can enjoy the best sound meter on the App Store.

Ever wonder how loud a sound really is? Well now you can with Decibel Meter! Decibel Meter uses your iPhone’s built in Mic to determine the intensity level of sounds it picks up, and displays it in dB SPL (Decibel Sound Pressure Level). *

Simply start up Decibel Meter and it will automatically start sampling sounds, and shows you the RMS average decibel reading as well as the peak decibel reading. Decibel Meter also provides a fun graphical way of interpreting the level of sound.

The iPhone’s built in Mic has the ability to pick up sounds near 0 dB SPL and up to around 110 dB SPL. Be sure to check out our website for a better understand of how decibels are measured!

-Easy to use, little user interaction required
-Easy to read Display
-Multiple views! Choose between level meter, and graph view
- Average and peak decibel levels, as well as peak hold feature
-User adjustable sample rate
-Graphical representation of sound level

*Decibel Meter should be used for entertainment purposes; the iPhone’s built in mic is not sensitive enough for professional level sound metering.

What's New in Version 1.8

-iOS 4 compatibility update
-multitasking aware (can now continue sampling in the background and plot levels on graph)
-graphics have been updated for retina display
-added stop and resume button so you can stop and resume sampling
-will now work on iPod Touch with built in mic, or third party mics
-now requires iOS 3.0 or greater to run

iPhone Screenshots

iPhone Screenshot 1
iPhone Screenshot 2
iPhone Screenshot 3

Customer Reviews

How come....

How come the meter reads 50dB in a perfectly quiet room (obviously with no one speaking or making music!) I could understand a reading of 10dB for any ambient noise in a non-sound proof room, but 50? I'm disappointed.

Crashes at launch

This app uses to be very good, now it just crashes when I try to open it.


Simple put: doesn't work. At all.

Decibel Meter
View in iTunes
  • $1.99
  • Category: Utilities
  • Updated:
  • Version: 1.8
  • Size: 0.6 MB
  • Language: English
  • Seller:

Compatibility: Requires iOS 3.0 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

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