My iOS apps in 2014 – full income report
musevisions.com
musevisions.com
Then we look at over-40 developers with decades of experience having a hard time getting hired at all, startups having success rates similar to lottery tickets, and software products for the hottest platform (mobile) in the hottest industry (IT), requiring the most in-demand skills, and most likely to generate incomes that can't compete with entry-level jobs at McDonald's.
It's certainly food for thought.
Props for sharing all the data though.
All the money I've made in mobile has been for building apps for businesses doing "boring" things that were subscription based. Sounds like I make more in a week of that work than I'd make in a year doing my own apps.