How RCS Messaging Works on iPhone with iOS 18

With the release of iOS 18 in September 2024, iPhone users in the U.S. can now use RCS messaging, a significant upgrade to cross-platform texting. This article explores how RCS works on iPhone, its features, and what it means for users.

What Is RCS on iPhone?

RCS (Rich Communication Services) is a protocol that enhances SMS with features like high-quality media, read receipts, and group chats. On iPhones, RCS is integrated into the Messages app, allowing better Android-iPhone communication. Learn more about messaging protocols in our RCS vs. SMS Guide.

Enabling RCS on iOS 18

To use RCS, go to Settings > Apps > Messages and toggle on RCS Messaging. It requires a carrier supporting RCS, like AT&T or Verizon, and a data connection. Unlike iMessage, RCS works with Android devices, though it lacks end-to-end encryption until iOS 19.

Benefits and Limitations

RCS on iPhone supports richer group chats and file sharing, improving user experience. However, green bubbles persist for Android texts, and some features are carrier-dependent. For troubleshooting tips, see our RCS Troubleshooting Guide.

Conclusion

RCS on iOS 18 marks a step toward unified messaging. As carriers expand support, iPhone users can enjoy a modern texting experience. Follow our Tips and tricks for updates on iOS 19’s RCS enhancements.