Pretty good start!
So far, so good. The app performs as expected. The developer is very responsive, and is very polite. I think this app has a lot of potential, and I’m looking forward to using it. I have set up my listening room, and put the sub where the app recommended, and it seems to sound pretty good. I haven’t done measurements yet, but I am moderately confident measurements will bear out what the app recommends. To quickly determine the place to put a sub, this app is very useful. Once the app is polished over the course of the next few months, it will likely be a five star app. It certainly worth a dollar!