1.6.15.0

I bought this game on my iPad before, but when I tried to download it on my iPhone, it showed that I needed to purchase it instead of being able to download it directly. I got in touch with Apple's customer service. They said it might be a compatibility issue and suggested that I give feedback...

Version is 1.6.15.0. I no longer have the option to use “invite code” or “IP address” to have my multiplayer friends join. I still have the co op button and every time I press host from there it still never shows up for my friends. We made sure versions were the same and internet was connected...