Been using Sound Meter – Decibel Meter for a couple months now. It’s basically an app that uses your phone’s mic to measure the noise levels around you in decibels (dB). Pretty solid app if you’re into that kind of thing.
Here’s what you do: you just open the app and it’ll start showing the current decibel level. There’s also a graph to see the noise history, and you can set a high decibel warning. And it’s got a bunch of other features too like calibrating the decibel for your specific device. Took me a while to figure some of that out but it’s useful.
Look, if you’re the kind of person who wants to measure noise levels at work, home, or out and about, you’ll probably like this. It’s not perfect – the ads can be a little annoying if you don’t pay – but overall it does the job. Worth checking out.