From the opt-in prompt to delivery analytics, relaybell is a complete web-push platform — segmentation, rich notifications, personalization, automation and a clean developer API. No app, no images to host, no per-message fees.
8
core capabilities
No app
desktop & Android
1 tag
to install
REST + SDK
built for developers
Design a subscribe prompt that matches your brand, then choose exactly when it appears. An optional two-step (double) opt-in warms visitors up first, so you only ask browser permission when they say yes.
Stay in the loop?
Get notified about new drops and offers. No spam — unsubscribe anytime.
Saved segment
2,481 subscriberscart-abandoners-in
Every subscriber carries context — where they signed up, their country, language, device and any tags you push. Combine rules into saved segments and reuse them across broadcasts and automations.
Go beyond plain text. Add a hero image, your logo, emoji and up to two action buttons that deep-link straight to the right page. Rich formats render on desktop and Android for a native, on-brand feel.
yourstore.com · now
Summer sale is live 🌞
Up to 40% off everything — plus free shipping on your first order this weekend only.
You write
Hi {name|there}, your {plan} trial ends in {days} days.
Delivered to Aditi
Hi Aditi, your Pro trial ends in 3 days.
Delivered to an unknown visitor
Hi there, your Pro trial ends in 3 days.
Drop merge tags like {name|there} into any title or body and relaybell resolves them per subscriber at send time. The part after the pipe is a fallback, so nobody ever sees an empty blank.
Welcome new subscribers automatically, schedule broadcasts for the perfect moment, and protect your audience with quiet hours and frequency caps so you stay welcome in their notification tray.
Automation rules
Welcome notification
Sends instantly on opt-in
Quiet hours
Hold sends 10pm – 8am local
Frequency cap
Max 1 per day / 4 per week
Scheduled digest
Every Friday, 9:00 am
Campaign report
Last 7 days12,904
Delivered
3,612
Clicks
28%
CTR
Clicks by day
Device breakdown
Every send reports delivery, clicks and click-through rate, with a breakdown by device so you know where your audience actually engages. Web-push click-through rates typically run higher than email — measure it for yourself.
Install with a single script tag, then send from your backend with one authenticated REST call. The API returns instantly and delivery happens asynchronously — targeting, scheduling and rich payloads all included.
# One POST sends to everyone — or a saved segment
curl -X POST https://api.relaybell.com/v1/notifications \
-H "Authorization: Bearer rb_live_••••" \
-H "Content-Type: application/json" \
-d '{
"segment": "cart-abandoners-in",
"title": "Still thinking it over? 🛒",
"body": "Hi {name|there}, your cart is waiting.",
"url": "https://yourstore.com/cart",
"actions": [{ "title": "Checkout", "action": "buy" }]
}'<!-- Drop one tag on your site -->
<script
src="https://cdn.relaybell.com/rb.js"
data-key="rb_pub_••••"
defer
></script>Delivery pipeline
Queued
Accepted & buffered for burst-proof sends
Delivered
Pushed to browsers in real time
Auto-retry
Transient failures retried with backoff
Dead-token pruning
Expired subscriptions removed automatically
Every notification flows through a durable queue, so a big broadcast never overwhelms anything. Transient failures retry automatically with backoff, and expired or revoked subscriptions get pruned so your list stays clean.
No add-ons, no upsells. Early adopters get the whole toolkit, free.
Customizable, triggered prompts with double opt-in.
Country, language, page, tags and device — saved and reusable.
Images, logo, emoji and action buttons.
Per-subscriber personalization with fallbacks.
Welcome, scheduling, quiet hours and caps.
Delivery, clicks, CTR and device breakdown.
One tag to install, one call to send.
Queued, auto-retried, self-pruning.
Works with the tools you already use
relaybell is free for early adopters. Create a project, add one tag, and start bringing visitors back today.