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Best Knock Alternatives(2026)

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

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Knock

freemium

Notification infrastructure that scales

Starts at $100/month

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Common reasons to switch

Expensive vs DIYLess known than TwilioLimited 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
Courier logo2

Courier

freemium

From $249/month

Courier is a notification platform with a visual designer for building multi-channel notifications across email, SMS, Slack, push, and more.

Pros

+Non-technical friendly designer
+Strong routing logic
+Good preference center

Cons

Expensive
Complex for simple use cases
Limited free tier
Multi-channel APIVisual template designerRouting rulesBatch & digestPreference center
Sendbird logo3

Sendbird

freemium

From $399/month

Sendbird provides in-app chat, messaging, video calls, and push notification APIs for mobile and web applications.

Pros

+Best for chat-heavy apps
+Prebuilt UIKit
+Video calls included

Cons

Very expensive
Overkill for simple notifications
Long contracts
In-app chat APIPush notificationsVideo & voice callsModeration toolsAI chatbot

Compare Knock Head to Head