We have no plans to bring Planet Coaster to mobiles.
This game can barely run on desktop computers without a fairly good GPU, CPU, and cooling system, and it's clear why, the graphics are impressive to say the least. I don't think there will be any mobile device powerful enough for a game like this for at least 5-10 yearsI would like Planet Coaster to come to iPhone as I don't have a computer but it would be nice to actually play Planet Coaster on an iPhone.