For the past month and a half or so I've been learning Swift/SwiftUI and developing an iOS app. I intend to sell it since I know there's a niche market for it. However, I don't know that I'll get many sales and I'll probably start off just handing out a bunch of promo codes at first to get initial users. I don't mind if it isn't "successful", but if I could sell enough copies to make up for the Developer Program annual cost and perhaps enough to help me pay a friend a bit for helping design an icon, that would be enough to make me "happy", I think.

A cherry on top would be maybe $100 a month or so. Even $50. Just to buy a couple meals with income from it.

But if it doesn't, I won't be hugely disappointed. It's just been a fun side-project.