We may earn a commission if you make a purchase from the links on this page. Perhaps lost in all of the Apple Intelligence talk that doesn't matter until iOS 18.1 is released next month is that the release of iOS 18 yesterday brings RCS support to the iPhone. RCS, or Rich Communication Services, is a messaging platform available to Android users that offers many of the same features of Apple's Messages app. Before the release of iOS 18, RCS only worked during chats between RCS users.