I think the main issue is there then :

> 'ignore your customers'

I'm not a customer of any music app. I'm not a customer of any dnd app. I am a user of music companion app, and in my opinion, but i'm clearly in the majority in my area, full feature tuner/music apps are inferior to companion apps for musicians. And it's the same for character sheet helpers for rpgs, we tried using an app a few years ago, it worked well enough, but companion apps are just better in my experience if you play on a table.

Probably because often, companions app have users, not customers?