Courier — Communication

What does Courier do?

Courier is a unified customer messaging platform that orchestrates notifications and lifecycle journeys across every channel—email, push, SMS, in-app, and more. It gives developers, product, and growth teams the APIs, SDKs, and primitives to build and deliver product messages at scale.

What problem does it solve?

Instead of juggling multiple messaging services and writing complex logic, Courier provides a single API and visual editor to trigger, personalize, and deliver messages. It handles the infrastructure behind every message, so teams can ship notification experiences faster and avoid the headache of maintaining separate integrations.

Who is it for?

Ideal for software teams—developers who want a robust notification backbone, product managers who need to design in-app notification centers, and growth teams that run multi-step user journeys. It's not for marketers seeking a traditional email marketing tool with pre-built templates.

Real use cases

A SaaS startup can use Courier to send onboarding email sequences, transactional alerts, and in-app notification center updates. A fintech app can trigger real-time alerts for transactions, while an e-commerce platform can orchestrate order status changes across email and push. Customer support teams can use journey logs and message logs to troubleshoot delivery issues.

• Omnichannel Messaging — Send notifications across email, push, SMS, in-app, and more from a single API.
• Customer Journeys — Build multi-step, data-driven messaging workflows that trigger, personalize, and deliver across channels.
• Design Studio — Create branded notification content with a no-code visual editor and preview on multiple channels.
• In-App Notification Center — Embed a fully customizable notification center into your product with real-time sync across devices.
• AI Agent — Run frontier LLMs as a step in any journey to score users, generate content, and enrich profiles.
• Digest & Batching — Group messages to reduce noise, with support for custom batching rules.
• Reliable Infrastructure — Includes SOC 2, GDPR, and HIPAA compliance, with log retention up to 1 year on Enterprise.

Courier pricing: from $0.005/send (Free tier available). Billing model: Freemium.

For comparison: the median starting price in Communication is $15.99/month, measured across 153 tools we track. See the full SaaS Pricing Index →

Developer (Free)

10,000 sends per month. Includes journeys & broadcasts, MCP server, CLI & SDKs, Google/GitHub SSO, email support, 7-day log retention.

Business ($0.005 per send)

Pay-as-you-go, no per-seat fees. Includes all Developer features plus unlimited notifications, AI Translations, AI Agent node, chat support, 30-day log retention, and HIPAA certification.

Enterprise (Custom)

Volume pricing, dedicated Slack channel, observability integrations, role-based access control, enterprise SLA, EU data residency, custom SSO, 1-year log retention, and onboarding & training. Contact sales for a quote.

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