” … paid-up-front app sales are not a sustainable way to make money on the App Store.”
Jared Sinclair worked hard on the Unread RSS reader, got high-profile positive reviews, and yet his take-home pay for the first year was a mere $1,750/mo.
I think there are lessons here for indie-published writers as well.
My self-published short fiction flopped spectacularly from a sales perspective. I think it was because I failed to market them. I’ll know better next time, and spend a significant amount of time writing blog posts and lining up reviews before I publish.