Shush - Sound & Noise meter

We like this app, but finding the right volume was challenging at first. It would be great to have a decibel scale to the side to help understand what volume it’s set at.

So as someone who is very self conscious about the fact that I am very loud, I love this app! It does exactly what I want it to do. The problem is that it has to be running in the foreground to work. Is there any way to add a feature that will allow it to run in the background? I teach children online at night and my son is sleeping. I got this app to use during this time but need my phone for other things while teaching as well. Anyways, just a suggestion to see if it is possible. Thanks! 🙏

Update: Developer responded that the update will resolve the issue but it still did not restore my purchase. App is simple in its design. In order to use some of the more advanced features, you can pay the one-time fee $2.99. I did, in fact, pay this fee. The app then started to crash every time I tried opening it. I removed it and tried to restore the download. Unfortunately, it expected me to pay again. Not worth the free version and the paid version is not dependable or useful. Very disappointed.