iPhone Screenshots


With dB Volume you turn your iPhone into a Sound Pressure Level (SPL) Meter. You can choose between the industry standard weighting curves and response times.

Use dB Volume for measuring environmental noises - it offers now Leq measurement!

dB Volume features:
- response time modes: impulse, slow, fast
- weighting functions: A B C Z (unweighted)
- peak hold function
- Leq measurement

We calibrated dB Volume as carefully as possible for all available devices. But: keep in mind, that due to manufacturing tolerances this calibration does not necessarily apply to your device – it’s still an iPhone, iPod touch or iPad and not a calibrated measuring instrument!

What’s New

Version 2.4

optimized for iOS 9.3

Ratings and Reviews

Petermonto09 ,


I tested this app , I compared it to a real db meter and its so close " + or - 1db " so in reality it's " + or - 2db " because a proper db mater may be out by 1 . So in comparison to other apps its the best , well done to the app maker !

Adammadd ,

Good program

Great program and useful. Just a shame the full version is so exxy cause the spectrum analyser looks like it would be good too
Keep up the good work!

Wisteria isle ,

iPhone 6 incompatible?

It worked very well on my iPhone 5, but it's not working on my iPhone 6. Perhaps incompatible with the new operating system? I hope it can be adjusted because it was very useful.


DSP Mobile UG (haftungsbeschraenkt)
19.8 MB

Requires iOS 8.0 or later. Compatible with iPhone, iPad and iPod touch.


English, Finnish, German, Russian

Age Rating
Rated 4+
© DSP Mobile UG (haftungsb.)


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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