You already pay for a SIM plan that includes SMS. Connect any Android phone to your RCSZilla dashboard and every campaign, reminder and auto-reply goes out through your own number. No per-message fees. No monthly contract. Your customers see a number they can text back.
The device is a full sending channel. Whatever you build in RCSZilla can use it:
Import contacts from CSV, personalise with {name}, schedule the send. Your phone works through the queue on its own.
Replies come back into the dashboard. Answer yourself, or set auto-reply rules for the questions you get every day.
Bookings and reminders go out automatically, so fewer appointments turn into no-shows.
WooCommerce, Shopify, PrestaShop, OpenCart, Magento and BigCommerce plugins send order updates through your device token.
Send single messages or queue up to 500 per call from your own code. Full reference at docs.rcszilla.com.
Send and verify one-time passcodes for logins and signups without paying a per-SMS provider.
We would rather tell you this upfront than have you find out from your carrier. A phone gateway works well for local businesses sending tens to a few hundred messages a day. It is the wrong tool for blasting 10,000 messages an hour: operators have fair-use limits, and one SIM is still one SIM. For volume, RCSZilla Cloud routes every message through carrier-grade gateways and always picks the cheapest available route, from €0.02 per SMS.
| Your Android device | RCSZilla Cloud | |
|---|---|---|
| Cost per SMS | €0 platform fee (uses your SIM plan) | From €0.02, pay as you go |
| Best for | Local businesses, up to a few hundred SMS/day | High volume, international sending |
| Sender number | Your own number (customers can call it) | Gateway numbers, branded Sender IDs where carriers allow |
| Replies | Two-way inbox | Depends on route |
| Setup | Pair the app, done | Buy a credit pack, done |
Most customers mix both: device for daily conversations, cloud for the big campaign days. You can switch per message, and the platform picks the free device automatically when it is available.
RCSZilla charges nothing per message on the device channel. Messages use your SIM plan, so the only cost is whatever your operator charges. On most unlimited-SMS plans that is nothing extra.
Depends on your operator. Most consumer plans tolerate a few hundred messages a day; sustained heavy volume can trip fair-use limits. For thousands a day, use cloud sending from €0.02 per SMS.
Yes. It needs power, signal and an internet connection. A spare Android on a charger next to your router makes a perfectly good dedicated gateway.
Yes. Incoming SMS land in the two-way inbox, where you can reply by hand or let auto-reply rules handle the routine questions.
Yes. The plugins for WooCommerce, Shopify, PrestaShop, OpenCart, Magento and BigCommerce use the device token, so order notifications cost nothing per message. Setup guides are on the plugin documentation page.
Create a free account, pair your phone, and send your first campaign today. If you outgrow the phone, cloud credits are one click away.
Create free accountRCSZilla lets you send SMS, WhatsApp, and Email campaigns to thousands of contacts, all from one dashboard. Sign up free, no card required.