Game Center was announced during an iOS 4 preview event hosted by Apple on April 8, 2010. A preview was released to registered Apple developers in August Game Center was released to the public on September 8, 2010 with iOS 4.1 on
iPhone 4,
iPhone 3GS, and
iPod Touch 2nd generation through 4th generation, and is included with iOS 4.2 or later on the
iPad. With the release, the application had changed significantly in its design from its first developer preview: it had a lighter "game board" appearance with more
skeuomorphic design elements. Though the
iPhone 3G did not officially receive Game Center, it could be installed unofficially via jailbreaking. The release of
iOS 5 introduced turn-based gaming, player photos, friend suggestions, and achievement points. Challenges, a way for players to challenge other players to beat leaderboard scores or earn achievements, were later added with
iOS 6. On June 13, 2016, the standalone Game Center application was removed from
iOS 10 and
macOS Sierra, though the service was still available; management of user profiles was moved within the Settings app. The Game Center settings pane received a further redesign in
iOS 14,
iPadOS 14 and
macOS Big Sur. Two Game Center widgets were introduced in
iOS 15,
iPadOS 15 and
macOS Monterey for accessing recently played games and viewing friend activity. == Games app ==