iOS 14 and tvOS 14 bring all-new Game Center, expanded Xbox and Playstation controller capabilities - 9to5Mac
View All Your Xbox Achievements in One Location
Microsoft announces Xbox Live for any iOS game; features like achievements, Gamerscore, hero stats, friend lists, clubs, and even some family settings will all be available on iOS : r/iosgaming
Xbox mobile app will let you share game content as Snapchat-style Stories - The Verge
Xbox Achievements Are Coming to iOS and Android | Digital Trends