It sounds interesting, and I'd like to give it a shot, but I'm wary of the term 'app'. I'm an old, retired, IT person, and am stuck in the 'PC' era. I have a 'smartphone' thing, but I only use it for replying to bank SMS messages for validating purchases (some new security thing...), and have no clue about 'apps' and stuff. If your 'app' runs on a PC, I'd give it a serious work-out; if it's for iPhones or Android stuff, I can't. Any use to you..?
Douglas