I'd really want this article to be true and that developing for Android first would be an equally good strategy. However, the claim that IOS-first is irrational is just dishonest. While Android total money spent in apps is gaining, iOS has been a solid leader for its entire history. Every decision to go for Apple first has been a correct one.
This is perfectly summed up by the first comment on the page:
"All I know is that my $3.99 iOS app outsells my $3.99 Android app 5-10:1"
This is perfectly summed up by the first comment on the page: "All I know is that my $3.99 iOS app outsells my $3.99 Android app 5-10:1"