THIS IS FOR IPHONES ONLY

So, I played this game a few months back and then changed phones. I had to start all over, but at the moment, I’ve made further progress than what I had on my other phone. I don’t want to lose the saved game file again. I looked through old threads and saw that I can back it up to ICloud, but a user named ‘Crystal’ stated that HI must be enabled to backup to ICloud. I don’t see where I can ‘enable’ it.

Please, if you have any