Every messaging vendor is shouting about RCS right now. Here is what it is, where it beats SMS, where it still falls short in 2026, and how to run mobile messaging campaigns today that will be ready for it.
RCS (Rich Communication Services) is the successor to SMS, built into the default messaging app on Android and, since iOS 18, on iPhone too. No app to install, no account for the customer to create. Where an SMS is 160 characters of plain text, an RCS message can carry your brand name and logo as a verified sender, full-size images, carousels of products, suggested reply buttons and read receipts.
In short, the inbox the phone already ships with gets WhatsApp-level features, and your customer never has to join another platform.
| SMS | RCS | |
|---|---|---|
| Reach | Every mobile phone, everywhere | Modern Android + iOS 18+, needs data or Wi-Fi |
| Content | 160 characters of text | Images, carousels, buttons, longer text |
| Sender | Number or text Sender ID | Verified brand name and logo |
| Receipts | Delivered | Delivered and read |
| Business sending in 2026 | Available everywhere, mature pricing | Rolling out per country and carrier, verification takes time |
| Offline delivery | Yes | Falls back to SMS |
That last row is the important one. A serious campaign sends RCS where the handset supports it and SMS everywhere else, so you never have to pick one. The fallback is what makes the channel safe to commit to.
The unglamorous workhorse. "Your order shipped" with a tracking button outperforms almost any promotional message because the customer wants it. If you run a store, start here: the RCSZilla store plugins automate it for WooCommerce, Shopify, PrestaShop, OpenCart, Magento and BigCommerce.
A reminder the day before, with a confirm/reschedule option, is the single highest-ROI message a service business can send. Clinics, salons, garages and consultants live off this one.
Open rates stay high as long as messages stay rare. One good offer a month to people who opted in beats four mediocre ones a week to people who barely remember you. Personalise at minimum with the first name; a {name} merge field costs you nothing.
"We have not seen you in 90 days, here is something to come back for": a two-line message with a measurable coupon code. Easy to automate, easy to prove revenue on.
Business RCS is opening up country by country, carrier by carrier, and sender verification takes time. The audience, on the other hand, is channel-independent, and you can build it this week:
When RCS business messaging is live for your country and sender, the upgrade is a routing change, not a rebuild.
RCS (Rich Communication Services) is the successor to SMS built into the default messaging app on modern Android phones and, since iOS 18, supported on iPhone. RCS marketing means sending branded, interactive messages (images, carousels, suggested reply buttons, read receipts) through that native inbox instead of a separate chat app.
SMS is 160 characters of plain text that works on every phone on earth. RCS adds branding, images, buttons, delivery and read receipts, and typing indicators, but needs a data connection and a compatible device. In practice campaigns run RCS-first with automatic SMS fallback, so every contact gets the message either way.
No. The list you build and the consent you collect are channel-independent. Businesses that build an SMS audience now are the ones with something to upgrade when RCS business messaging opens up in their country. Starting from zero later is the expensive option.
RCSZilla runs your SMS, WhatsApp and email campaigns from one dashboard: free through your own Android phone, or from €0.02 per SMS in the cloud.
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