relaybell sends notifications straight to your users' browsers — desktop and Android. Set up an opt-in prompt, build segments, and send rich, personalized notifications in minutes.
Free to deliver · No credit card · Works on desktop & Android
Flash sale 🔥 30% off
nowEnds tonight — your cart is waiting.
New article published
2m5 web-push tactics that actually convert.
Higher
CTR than email*
<1s
delivery time
Free
to deliver
2 min
to first setup
No app
just the browser
Desktop & Android
broad reach
From the opt-in prompt to delivery analytics — one clean, honest platform.
A customizable subscribe prompt, then target subsets by country, page, language, tags or device.
Hero images, action buttons, your logo and emoji — engaging on desktop and Android.
Drop in merge tags like “Hi {name}” to greet every subscriber by name and tailor each send.
Welcome flows, cart reminders and scheduled broadcasts fire on autopilot at the perfect time.
Delivery, clicks, CTR and a full breakdown by device and browser — live in your dashboard.
One clean REST endpoint and a drop-in JavaScript SDK. Ship your first send in minutes. Read the docs →
Web push costs nothing to deliver, and your subscriber data always stays yours.
Set quiet hours and frequency caps so you reach people without ever wearing out the welcome.
Go beyond plain text. Add a hero image, your logo, and up to two action buttons — then greet every subscriber by name with merge tags like “Hi {name}”.
Your cart is waiting
nowHi Asha, your cart is waiting — finish checkout and save 15% today.
yourstore.com · via relaybell
No SDK gymnastics. Paste a snippet and you're collecting subscribers.
Drop one script tag on your site. relaybell handles the service worker and the opt-in prompt for you.
Visitors opt in with one click. We capture device, country, language and your custom tags automatically.
Broadcast, target a segment, or schedule it. Track delivery and clicks in real time.
A one-line snippet and a full REST API are available today. Native plugins are on the way.
<script src="https://cdn.relaybell.com/rb.js"
data-site="rb_live_••••" defer></script>Drop it in your <head>. That's the whole install.
Available today & coming soon
Prefer to build it yourself? The REST API and JavaScript SDK give you full control over targeting, scheduling and personalization.
Free to deliver, instant on-screen, and no inbox to fight for. Here's how it stacks up.
| 🔔 Web push | ✉️ Email | 💬 SMS | |
|---|---|---|---|
| Cost to deliver | Free | Low, but per-send fees | Per-message charge |
| Speed | Instant, on-screen | Minutes to hours | Fast |
| Inbox / spam | No inbox to fight | Spam & promo tabs | Filtering & opt-outs |
| Setup for users | One click, no app | Share email address | Share phone number |
* Industry norm: web push click-through rates typically run higher than email. Your results will vary.
Authenticate with a Bearer key, POST your payload — including merge tags, an image and a segment — and we deliver asynchronously. The response returns instantly.
# Send to everyone — or a segment
curl -X POST https://api.relaybell.com/v1/notifications \
-H "Authorization: Bearer rb_live_••••" \
-H "Content-Type: application/json" \
-d '{
"title": "Hi {name}, your cart is waiting 🛒",
"body": "Complete your order and save 15% today",
"url": "https://yourstore.com/cart",
"image": "https://yourstore.com/banner.jpg",
"segment": "abandoned_cart"
}'Straight answers — no fine print.
Yes. During early access relaybell is free for early adopters — no credit card required. You get up to 5,000 subscribers, unlimited notifications and every core feature.
No. Web push works right in the browser. Visitors tap “Allow” once and start receiving notifications — nothing to download, no app store.
Web push is supported in Chrome, Edge, Firefox and Opera on desktop, and Chrome on Android. Coverage is broad and keeps growing across modern browsers.
A subscriber is one browser on one device that has opted in to your notifications. If someone opts in on both their laptop and phone, that counts as two subscribers.
Yes. Use merge tags such as “Hi {name}” to personalize the title and body, and add images and action buttons for a rich, on-brand notification.
Paid plans arrive later — but early adopters lock in founder pricing. You will always get plenty of notice, and nothing changes for you mid-flight.
Join the first wave, help shape relaybell, and lock in founder pricing.
₹0/mo
No credit card required
Paid plans coming soon — early adopters lock in founder pricing.
Create a project, add the snippet, and bring your visitors back — free during early access.