Re:It’s Been Real, Android: Why I’m Retiring from Android
by odbol_ on Thursday October 13, 2016 @03:24PM
(#12703353)
Then he's not a very good programmer. This is technology: at the rate it's advancing, even tools from 5 years ago are out of date. You have to constantly keep up with the latest advances in programming if you want to stay relevant.
The author states pretty plainly the biggest reason for leaving Android development was he didn't have time to keep up with all the developments in both Android and iOS communities.