It does what it says

This app does what it says. The updated version is even better.
Lets face it this and all other similar ones depend on the accuracy of iPhone mic.
You want 100% results, the should get a professional unit.

I wish it would measure higher than 100 Decibels. 140 or even 150.
I strongly hope it will be on the next update.

I use it in music halls etc when DJ or Musicians go very loud. It is an ideal way to calm down
ear piercing loud music to bring comfort to listeners.
Thank you

Big GABIG about Decibel Meter