Owner of a concert sound system

I think this app is incredible I used to use it everyday. I used almost every feature. However I lost the phone the app was in which I paid $59.99 for at the time, but its not available to me in my purchased apps without paying for it again. At least the price went down but Im not doing it again out of principle.

Sound guy from the Village about AudioTools - dB, Sound & Audio, v8.0