Let's say the app is a EXIF editor to process bulk images. It's a simple tool.
How can one make money off of it?
A subscription for such a simple tool doesn't make sense for it to be an ongoing cost.
Donations are unreliable.
Further upgrades/features to the app, is a possible one.
One time purchases make the most sense, but aren't conducive to long term growth/improvements.
What are your thoughts and experiences?