Knock

Notification infrastructure for product teams

Best for: Product teams building notification infrastructure for multi-tenant SaaS products

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4.6/5Editorial score 85/100knock.app

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Editorial score85/100

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The editorial note

What to know about Knock

Knock is a developer-focused notification infrastructure platform for building multi-channel notification systems. It handles email, SMS, push, in-app, Slack, and webhook notifications through a workflow engine and a pre-built notification center component. Unlike Novu (open-source), Knock is a managed SaaS with enterprise features including tenant management, user preferences, and notification analytics.

Is it right for you?

Who Knock suits

Choose it if

Product teams building notification infrastructure for multi-tenant SaaS products

Look elsewhere if

Simple single-channel notification use cases (Resend for email alone is simpler)

What you get

Key features

Multi-channel workflows
Notification center
User preferences
Tenant isolation
Analytics
Email, SMS, push, Slack
API

Works with

Integrations7

SendGrid Postmark TwilioFCMAPNsSlack Segment

The trade-off

Pros and cons

Pros

Multi-tenant support
Notification center component
User preferences management
Workflow engine
Great documentation
Generous free tier

Cons

Pricing at scale
Managed only (no self-hosting)
Less known than Novu

Quick read

At a glance

Category: Development & Coding
Pricing model: Freemium
Free plan: Available
Free trial: Not listed
Website: knock.app

The verdict

Our take on Knock

Best managed notification platform for multi-tenant SaaS. Knock's tenant isolation and user preferences management solve real problems for product teams.

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