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Best Courier Alternatives(2026)

We compared 3 alternatives to Courier — so you can find the best option for your needs and budget.

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Courier

freemium

One notification API for every channel

Starts at $249/month

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Common reasons to switch

ExpensiveComplex for simple use casesLimited free tier
Novu logo1

Novu

open-source

From $250/month (cloud)

Novu is an open source notification infrastructure for managing in-app, email, SMS, push, and chat notifications via a single API.

Pros

+Open source
+Multi-channel (email, SMS, push, in-app)
+Self-hostable

Cons

Complex for simple use cases
Cloud pricing is high
Still maturing
Multi-channel notificationsIn-app notification centerWorkflow builderDigest & batchingSubscriber management
Knock logo2

Knock

freemium

From $100/month

Knock is a notification delivery platform for product teams to build and manage complex notification workflows across channels.

Pros

+Best-in-class notification workflows
+In-app notification component
+User preferences built-in

Cons

Expensive vs DIY
Less known than Twilio
Limited free tier
Multi-channel workflowsIn-app feedsDigest notificationsPreferences APITemplate management
OneSignal logo3

OneSignal

freemium

From $9/month

OneSignal is a multi-channel messaging platform for push notifications, in-app messages, email, and SMS.

Pros

+Generous free tier (unlimited push)
+Easy mobile SDK integration
+Good segmentation

Cons

Not developer-API-first
Privacy concerns raised by some
Limited workflow complexity vs Knock
Push notificationsIn-app messagesEmailSMSA/B testing

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