Board Thread:Game Discussion/@comment-2602:304:CDB9:B3A0:B930:3772:A1:4057-20170716155549/@comment-2602:304:CDB9:B3A0:8499:17:EBC2:D6CB-20170716181312

My understanding is that the offer only extends to Android users, so if you're an iOS user it's a no-go. Apparently iOS users got the same offer in April.