I've built and maintained a small series of iOS apps since early 2015 to learn Swift at the time. My latest release was 2020 and they're all quite simplistic fu

I've built and maintained a small series of iOS apps since early 2015 to learn Swift at the time. My latest release was 2020 and they're all quite simplistic functionally, albeit filling a niche. Monthly proceeds vary around $800-1500 now and I'm approaching the lifetime proceeds of $30k. I have no clue what the Android environment would be like now, but likely not as successful.