I got it, the apk version is to protect copyright claims and rights. That explains everything, thank you.
P.S. I never said a word about price or game being free, I dunno why you mentioned it :D
My bad, bad wording. I didn't mean to tell "allow them be unpunished", just to "ignore android for now because there are ports and no need for an official one". Of course those ports should be hunted down and banned, I was a bit too philosophical about the issue and merely meant "they have a way to play anyway". Please forgive me if I sounded like promoting pirating this game, I should've been more clear