It clearly works and its only $0.99

I was just about to purchase a handheld db unit when I ran across this interesting looking little app. I had recently purchased a high pressure misting pump, which is louder than I would like, so I wanted to try some ideas I have for reducing the sound, and I wanted/needed a way to measure the results. As I still have a first generation iPad, I had concerns about how well this app would work with it. Turns out it works great. It downloaded easily, and when I fired it up by the pump, it read 70.5 db - the manufacturers spec sheet said to expect 70 db, so this app seems to be right on the money. This app save me about $30, so I say its a great deal for $0.99.

My only suggestion would be that they provide a bit more info for us novices.

Jack2753 about SPL Meter, v6.9