That is a good question, as iOS is now two versions behind Android. On Android the pets were introduced in version 1.24.200... while my iOS game is still 1.22.4... There was an update to Android (1.23...) some weeks ago, which I've been waiting to come to iOS. It included small fixes and what I mostly liked was the ability to change in addition to PvE armors/R&A:s also war/Raid/EB setups from Menu/My Knights. And what makes it harder to estimate is that Apple approval takes its time, and there Gree has not much it can do to speed it up.