To download a game pigeon
Thank you
iPhone 6, iOS 10.2.1
You don't give any details so this is may not be helpful: Game Pigeon for iMessage on an iPhone or iPad can be downloaded by going to the App Store app on one of those devices. It can also be downloaded to iTunes on a computer and then synced to an iPhone or iPad. See: https://itunes.apple.com/us/app/gamepigeon/id1124197642?mt=8
It does not run on a Mac.