In-App Notifications, Solved.
Trusted At Scale
Trusted by Twilio, Vanta, Photoroom, and more
From high-growth startups to public companies, engineering teams choose Courier Inbox to power in-app notifications.
It’s flexible, real-time, and built to scale.
Instant setup
Drop it in a day.
Get back to your roadmap.
Start with our prebuilt, modern inbox for fast integration. Expand with theming, preferences, and multi-device delivery when you’re ready for it.
Fully customizable
Make it yours.
Designed to be flexible.
We give you full control over how Inbox looks, feels, and behaves with flexible components, well-designed APIs, and support for every major platform.
Unified delivery
In sync across every channel
Reach users through their preferred channels, and give them one consistent place to review it all in-app. Users never lose context or miss a message. Everything is synced, visible, and easy to act on.
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Seamless
Courier Inbox gives you everything you need to embed a real-time in-app notification center into your product. It’s ready to use out of the box and designed to integrate seamlessly.
Messages show up instantly and stay in sync with real-time updates powered by WebSockets.
Use platform-specific SDKs to embed Inbox directly into your web or mobile app with minimal setup
Each user sees only their own messages with built-in access controls that keep your inbox secure.
Give users control with built-in views like Unread and Archived, plus fullscreen mode for focused review.
Automatically sync read states across email, push, and in-app so users never see the same message twice.
Drive faster engagement by letting users respond, approve, or navigate without leaving the inbox.
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Instant Setup
Drop it in. It just works.
Add in-app notifications in minutes
Courier Inbox is included with every Courier account — and integrates in just a few lines of code.