dB Sound Level Meter - Noise Volume Measure (Decibels) Free

I think the first 3 reviews are fake. This app does nothing. In dead silence the numbers fluctuate between 52 and 64. There's a very loud outdoor party going on at the house next to me. Someone yelling on a microphone, or some kind of amplified something, music (if you call it that)...50+ people all yelling at the same time. If I go outside, the app still fluctuates between 62 and 64. Games keep piping up every few seconds that you can't close because there's no "x" to close them. You have to go to all the apps that are open to get back to this one. When I clicked "rate this app" it went to a blank screen with an arrow in the middle that spins continuously. This happened 5 times. By going to the App Store, I was able to go back to this app and choose "leave a review". Don't download this app, it's not an app. There...I just saved you 30 minutes. Now, go spend the next 30 minutes doing something you really enjoy.

I can't speak as to accuracy, but this is probably just fine for delta measurements. Totally works and no annoying ads! I was so happy about that I clicked over to the sponsors page!