What is RCS business messaging?
RCS is essentially an upgrade to SMS (traditional texting) that works over the internet. Unlike SMS, RCS is much more flexible in terms of features, content format and message length. RCS enables users to transmit rich media — images, videos, carousels, and rich cards — with content that can include CTA buttons and link previews.
As with modern chat apps, RCS supports real-time typing indicators and read receipts. It’s built for proper two-way, fluid conversations. Importantly, RCS works inside the native SMS app on modern smartphones, with nothing extra to download or subscribe to.
RCS business messaging is another layer that sits on top of the RCS messaging framework. Through an RCS agent (a verified digital profile), businesses can send branded, trusted messages which include the company name, logo and verified badge) to customers. Learn more about how RCS for Business works.
RCS business campaigns can be purely promotional — e.g. a flash sale message — conversational for customer service, or transactional: confirming an order, updating on delivery progress or administering 2FA PIN codes for account logins.
How RCS has evolved
RCS has been around for several years, but in the beginning, development was very fragmented, providing an inconsistent experience across devices and carriers. The turning point for RCS came when the GSMA introduced the Universal Profile, which enabled RCS to work consistently globally. And in late 2024, Apple adopted RCS for iMessage, enabling it on iPhones for the first time.
RCS Universal Profile 3.0 was developed in 2025 and focused on stability and infrastructure, aiming to make RCS feel reliable and secure. This is currently being rolled out across devices, mobile carriers and messaging apps. Next up will be RCS 4.0, an experience upgrade that will make RCS feel modern and seamless.
What is Apple Messages for Business?
iMessage is Apple’s secure messaging service built into iPhone, iPad, Mac, Apple Watch and Apple Vision Pro. Like RCS, iMessage uses Wi-Fi or mobile data to send messages and offers many of the same rich features, such as high-quality media sharing, typing indicators and read receipts. iMessage for business was rolled out with iOS 11.3 in 2018 — originally called Apple Business Chat and later Apple Messages for Business (the latter being the official name of the service today).
Apple Messages for Business lets customers message brands directly in the iMessage app. Customers must initiate the chat by default, for example, by searching for a business in Maps, Safari or Search, tapping the ‘Message’ button and then chatting. Businesses can set up live agents, chatbots or automated replies to respond. iMessage, being a closed, highly secure and trusted channel, makes interacting with businesses a natural, frictionless and easy experience — a bit like texting a friend. Apple Pay is built in, enabling seamless checkout within iMessage itself.
Key differences between RCS and Apple Messages for Business
RCS and Apple Messages for Business have notable differences that could sway you toward one or the other, depending on your marketing and communication goals. Below, we explore why both business messaging frameworks were built, their reach and unique features, and how each differs in terms of security.
Purpose
RCS business messaging was built to provide a richer, more interactive, and more secure brand-to-consumer communication channel than traditional SMS. It allows businesses to send rich media messages at scale, providing the kind of flexible, creative user experience people know and expect from modern OTT messaging apps like WhatsApp and Messenger (within the native SMS app).
Apple Messages for Business was built to provide a controlled, trusted and premium in-app customer experience channel — and to make talking to businesses feel easy, safe and seamless. It was also designed to address poor customer service issues, reducing long phone call wait times with asynchronous messaging that allows customers to dip in and out of conversations when needed.
Reach and scale
RCS business messaging has the potential to reach billions of smartphone users — already covering more than 80% of users in markets like the US and France. This scale is driven by its native presence on devices and growing cross-platform support, significantly accelerated by Apple’s adoption of RCS. The active user base for RCS is expected to reach 3.8 billion in 2026. Another crucial point about reach is that businesses can contact customers first when using RCS — so they can be proactive rather than reactive. Read more stats and facts about RCS business messaging.
Apple Messages for Business is limited to Apple’s ecosystem, and there are more than 2.5 billion active Apple devices globally. (Note that one person may own more than one Apple device, so the number of unique users is likely to be less than this figure). iMessages are tightly controlled and permission-based, so they're not really suited for outbound marketing campaigns. You can’t, for instance, upload a contact list and send a bulk campaign to that audience — and this is a fundamental difference from RCS and SMS business messaging. Essentially, iMessage business messaging will reach a subset of Apple users who actively engage with a business.
Features
Both RCS for Business and Apple Messages for Business offer similar features for transmitting rich media content. But here’s what each offers that the other doesn’t:
Unique RCS for Business features:
Cross-platform reach — and it works across different mobile networks globally.
Built for Application-to-Person (A2P) messaging — great for outbound marketing campaigns and notifications at scale.
Supports product carousels.
Unique Apple Messages for Business features:
High-trust user interface — native Apple conversations that appear in blue bubbles.
Ecosystem integration — connects to Apple Pay, Calendar, Maps, Siri.
Seamless checkout experience — with built-in Apple Pay flow.
Designed for customer service — supports assisted sales, troubleshooting and long-lived conversations.
Supports list pickers, forms and structured menus.
Security and privacy
Apple Messages for Business is designed to put customers first in terms of privacy (businesses are not able to send unsolicited messages and must undergo Apple verification processes). iMessages are end-to-end encrypted by default, meaning no third party (or even Apple) can read message content. It’s the ‘gold standard’ for message security.
The security of RCS for Business is evolving. RCS messages are encrypted in transit (TLS) and can be end-to-end encrypted when both the sender and recipient are on RCS-supported and enabled devices. However, an RCS message sent to an Apple user will not (yet) be encrypted. As of 2026, RCS doesn’t match the full encryption of apps like iMessage and WhatsApp.
RCS and iMessage business messaging FAQs
Some questions we often receive are whether businesses really choose to send rich messages through either of these frameworks, and whether SMS is still in the picture. We answer these below:
1. Do businesses actually use RCS messaging?
Many businesses already use RCS messaging to send a wide range of communications, including high-engagement marketing campaigns and interactive product catalogues, secure one-time passwords (OTPs), appointment reminders, cart abandonment recovery and in-chat customer support.
RCS for Business can guide customers seamlessly from discovery to purchase — from browsing a sale in an interactive carousel to selecting buying options via simple prompts, completing their purchase, and receiving follow-up aftercare. It’s a push-and-pull channel — businesses can initiate conversations and customers can respond to drive the interaction.
2. How do businesses use iMessage?
Apple Messages for Business only start when customers choose to engage with a brand. They start a conversation from a search or Apple Maps, then continue their journey via iMessage. Often, businesses set up an automated welcome message with quick-reply options like ‘Where’s my order?’ or ‘Browse products. Human advisors step in where needed.
Because of the conversational nature of Apple Messages for Business, it’s usually used for customer support and converting leads into customers once interest is established. iMessage is popular because it feels natural and high-trust — and because customers must start the conversation, it’s safe to say they’re either already interested, ready to buy or need help. This makes iMessage business conversations valuable.
3. Will RCS and iMessage replace SMS business messages?
RCS for Business and Apple Messages for Business are a huge upgrade to traditional text messaging, but it’s unlikely SMS business messages will be replaced anytime soon. Both RCS and iMessage use an internet connection to deliver rich messages (sent as data); however, the internet isn’t always available, and it’s not everywhere in the world.
In contrast, SMS uses cellular networks (a completely different infrastructure built for phone services), which enables tiny, fixed-size messages to be transmitted reliably anywhere there’s a phone signal. This is why both RCS and Apple Messages for Business use SMS fallback if a rich message fails to send due to lack of WiFi or mobile data. SMS is also the only true universal communication channel, working on mobile phones everywhere, even old ones and basic cell phones.
Rich messaging is reshaping customer journeys
RCS for Business and Apple Messages for Business bring rich, flexible messaging into the same space customers already use daily. And they each have different strengths and weaknesses.
With iMessage, customers choose to start conversations, making it a high-intent channel, ideal for support, bookings, and assisted purchases. However, iMessage’s reach is limited to Apple users. RCS, on the other hand, allows businesses to proactively engage customers (across both Android and iOS devices) and guide them through journeys with interactive, branded messages. While RCS offers greater scale and outbound messaging opportunities, iMessage leads the way in security, privacy and trust.
