Decibel Meter Plus Pro 4+

华芳 张

Designed for iPad

    • 3.7 • 78 Ratings
    • $1.99



Do you know how loud is too loud?
Do you know NIHL(Noise induced hearing loss)?
What's the decibel exposure time guidelines?

Decibel Meter Pro will tell all the answers to you.

Decibel Meter Pro is a must have app for your device! Simply launch the app and start reading the sound levels that surround you every day! Want to know just how loud this club is? Just how loud is this lecture anyhow? Decibel Meter Pro can help you on these case! Download Decibel Meter Pro and measure the sounds around you right now!

Decibel Meter Pro also tells you decibel exposure time guidelines. It tells you how loud is too loud. It tells you what's Noise induced hearing loss and how to avoid it.

#52 Top Paid Utility App in United States the first day to Appstore!!!


"This little app is the best tool for decibel. Every one should have one."
— By Appshopper (5/5)

"Love the decibel exposure time guidelines. It's great! "
— By (5/5)

"This is the best decibel tool."
— By (5/5)


The iPhone's built in microphone is sensitive from 0 to approximately 110 decibels.
An average quiet room will be in the 40-50 dB range.

Key features:

- Support iPad. Universal binary, download once and it runs on iPad, iPhone and iPod.

- Support multiple languages: English, French, German, Italia, Simplified Chinese, Traditional Chinese, Japanese and so on.

- Measure the sound levels around you, with ease!

- Display the Average, Peak and Max values with both nice and clear digital and analog layout.

- Easy to read interface with amazing graphics optimized for the new Retina display!

- Start or stop Decibel Meter Pro any time. The last measurements are saved and displayed.

- Plotted history of the Average values.

- Tap graph to switch color.

- Easy to pick graph color.

- Record and export the data to email for further analysis.

- Tap on Max to reset it any time.

- Warm guide for how to avoid Noise-induced hearing loss(NIHL).

- Decibel exposure time guidelines tell you how loud is too loud.

- Decide whether or not you want your device to sleep while metering.

- Adjustable sample rate.

- Calibrate the measurements from -10dB to 10dB.

- Sound effects that can be turned on or off.

- Reset settings to defaults.

You will not be let down!! Get Decibel Meter Pro and enjoy it now !!

What’s New

Version 1.8

Fix bugs.
Support new iOS and device.

Ratings and Reviews

3.7 out of 5
78 Ratings

78 Ratings

Rich from NC ,

East and functional

I work in the aviation industry, and this app is very useful. The clear, easily read display makes detecting hazardous noise situations easy. My wife likes using this app in the classroom, where it makes it easy to give students feedback on their noose levels.

Utah Ron ,

Nice to Have

Sound level meters are high cost items, and so I jumped at the chance to have one via a low-cost app. In addition to general interest use, it was quite helpful in evaluating noise level in cars. It is a keeper.


My review

App does exactly what I originally wanted. I like the digital presentation, Along with a running graph. A few lines on the graph to show the various levels of sound (ie. normal, loud, & harmful) would be welcome additions. Another addition would be a date/time stamp on the MAX reading.

App Privacy

The developer, 华芳 张, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

More By This Developer

Fisheye Plus
Decibel Meter - Measure the sound around you with ease
iPixelCam - Vintage Cam
iPixelCamera Pro - LOMO Cam
Social Networking
Fisheye Plus Pro
Photo & Video
CrystalCam -Retro Style Camera

You Might Also Like

Signal Generator - Wave
Pocket Lux Meter
Split Screen Multitasking View
let's led - led banner app
Amperes 3 - Battery Life Info