Notifizz and Courier

Built around provider routing.Or around the data in your own systems.

Courier unifies notification providers behind one API, with routing and failover, plus templates and journeys for product and growth teams. Notifizz connects each campaign to the data in your own systems, with no contact database to sync.

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Consider Notifizz when

Shared campaign workflow.Data read from your systems.

You’d rather not import or sync recipient profiles into a messaging platform: campaigns read the customer data they need from your own systems.
You want AI to check each campaign against your events and data, and list only what engineering still has to implement.
You want marketing, product and engineering in one campaign workflow, with an implementation step and a review before your team publishes.
You prefer a European vendor, with the platform hosted in France by a French provider.

Consider Courier when

Their strengthsmatch your priorities.

Slack and Microsoft Teams must be first-class delivery channels.
Multi-provider routing and automatic failover are central needs.
Your engineers want to choose and connect their own providers.

A different starting point

Use your customer data.Where it already lives.

Profiles kept on the platform

Store. Sync. Send.

Your CRM and product data
Recipient profiles kept on the messaging platform
Campaigns use stored profiles and trigger data

Update stored profiles when your users’ details change.

Courier stores user profiles; a send can also use an address and data passed in the call, and Journeys can fetch data from your API.

The Notifizz approach

Connect. Read. Send.

Your CRM and product stay the source of truth
The campaign requests the context it needs
The published message is personalized and sent

No customer contact database to import or keep synchronized.

These diagrams compare data models. Notification delivery still involves operational records and retention; freshness also depends on the source and any configured cache.

Explore the data approach

Side by side

The detailsbehind the decision.

Notifizz and Courier: data, workflow and delivery
What matters	Courier	Notifizz
Customer data	Recipient profiles and channel addresses are stored; a send can also target an address given in the call.	No customer database to import or sync. Notifizz keeps only what sending requires (identifiers, addresses, preferences, delivery history); everything else is read from your systems when the message is built.
Channels	Email, SMS, push, in-app Inbox, Slack, Microsoft Teams, WhatsApp, Discord and webhooks.	Email and Notification Center are available. Web push is in closed beta and Intercom in pilot; SMS and WhatsApp are coming soon.
Live personalization	Message data comes from the send payload or stored profiles; Journeys can call your API with a fetch-data node.	Enrichers read your systems when the message is built, with a short cache: one hour by default, configurable per source.
Campaign creation	Product and growth teams design templates in Design Studio, build Journeys on a visual canvas and send Broadcasts; AI coding agents can create templates and Journeys through Courier’s MCP server.	Marketing and product create in a shared workspace; engineering implements what is missing.
Developer work	Integrate the Courier API or SDKs and connect your own delivery provider accounts (Courier Inbox needs none).	Connect events and enrichers. Reuse existing requirements; implement the missing ones.
Review and versions	Template drafts and publishing, version history with compare and rollback, versioned Journeys and an optional approval before publishing.	Editing, Implementation, Review and Live. Nothing goes Live until someone on your team publishes it. New campaigns go through Review first, and so do updates that change a campaign’s logic (event, steps, conditions, recipients, channels or data); text-only edits can be published directly.
Email delivery	Routing and failover across providers such as SendGrid and SES.	Your own domain, a spam score on Review test sends, and delivery and bounce data from the provider.
Hosting and privacy	Profiles and preferences are stored in a US or EU (Ireland) datacenter; EU data residency on Business and Enterprise plans.	Hosted in the EU (France). US subprocessors: Cloudflare (network), Postmark (email delivery) and Anthropic (AI). The AI designs campaigns from the structure of your events, never their values; a test run you ask it to debug is shared with it. No contact database sync. Suppressed addresses are kept as keyed hashes.

Based on each vendor’s public documentation, checked on 7 October 2026. Tell us if something is out of date.

Sources: Courier · Recipients · Integrations · Routing · Failover · Fetch data · Design Studio · Journeys · Broadcasts · Build with AI · Version history · Approval workflow · Datacenters · Pricing

Moving to Notifizz

Connect your systems.No contacts to import.

There is no contact database to import. Set up the events, delivery channels and live data your first campaign needs.

Read the quickstart

Connect an SDK.
Choose the integration for your application.
Send your first event.
Connect the event and any live enrichment required by the campaign.
Set up your channels.
Add the notification center and configure your email domain.
Review and publish.
Preview the campaign, check the requirements and publish it.

Questions, answered

The practicalquestions.

Talk to us

Can Notifizz replace Courier for our team?

Start with your required channels and workflow. Notifizz brings product and transactional campaigns together around live data and human review; marketing broadcasts are in closed beta. Courier may fit better where its channel coverage or provider routing is essential. A demo with your own use case makes the trade-offs concrete.

What about multi-provider routing?

Multi-provider routing with failover is a core Courier capability: if it is your central requirement, Courier is a strong fit. Notifizz centers on one campaign workflow for marketing, product and engineering, data read from your systems at send time, and email delivery included on your own domain.

What changes for our customer data?

Notifizz reads the data each message needs from your systems, so there is no second contact database to keep in sync. Like Courier, Notifizz acts as a processor. The platform is hosted in the EU (France); Cloudflare (network and security in front of our services), Postmark (email delivery) and Anthropic (AI campaign design) are US subprocessors. See the privacy policy for the scope of data processing.

See how it fits.With your own campaign.

Walk through your data, your channels and the way your team works.