# What is RCS?

> RCS (Rich Communication Services) is the modern replacement for SMS — a protocol that supports verified branded senders, rich cards, suggested replies, read receipts, and group messaging. RCS Business Messaging (RBM) is the enterprise variant. Native in Android Messages since 2019; supported on iPhone since iOS 18 (2024).

- Canonical URL: https://www.broadnet.me/answers/what-is-rcs
- Language: en
- Last reviewed: 2026-07-16
- Publisher: BroadNet (https://www.broadnet.me)

## Related

- [All answers](https://www.broadnet.me/answers)
- [Glossary](https://www.broadnet.me/answers)
- [What is the RCS Universal Profile?](https://www.broadnet.me/answers/what-is-rcs-universal-profile)
- [Does the iPhone support RCS?](https://www.broadnet.me/answers/iphone-rcs-support)
- [What is RCS Business Messaging (RBM)?](https://www.broadnet.me/answers/what-is-rcs-business-messaging)
- [What is rich card messaging?](https://www.broadnet.me/answers/what-is-rich-card-messaging)
- [RCS vs SMS — compared](https://www.broadnet.me/answers/rcs-vs-sms)
- [RCS vs WhatsApp — compared](https://www.broadnet.me/answers/rcs-vs-whatsapp)
- [RCS Messaging](https://www.broadnet.me/products/rcs-messaging)