I built and sold an installable application in the past, and #5 was brutal. For some reason it's rarely discussed.
Pretty crazy when you see your own app on torrent sites.
Not all problems are workable within that constraint.
Can you share some examples of how you've furthered humanity while living for free?
I've spent a lot of time on my app and I still had to pay people to help do the app.
The best thing you can do is identify them and segment them into beta / test updates for experimental features which you wouldn’t test on paying users.