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Knock vs SendGrid(2026)

Knock is better for teams that need all notification channels in one. SendGrid is the stronger choice if huge volume capacity. Knock is freemium (from $0 (10,000 notifications/month free)) and SendGrid is freemium (from $19.95/month).

Full feature breakdown, pricing details, and pros & cons below.

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Knock logo

Knock

freemium

Knock provides a notification system with multi-channel delivery (email, push, SMS, in-app) and workflow orchestration.

Starting at $0 (10,000 notifications/month free)

Visit Knock
SendGrid logo

SendGrid

freemium

SendGrid (Twilio) is a cloud-based SMTP provider for transactional and marketing email.

Starting at $19.95/month

Visit SendGrid

How Do Knock and SendGrid Compare on Features?

FeatureKnockSendGrid
Pricing modelfreemiumfreemium
Starting price$0 (10,000 notifications/month free)$19.95/month
Multi-channel (email, SMS, push, in-app)
Notification templates
Workflow builder
Notification preferences
Batching and digests
Transactional API
Marketing campaigns
Email templates
Deliverability tools
Analytics

Knock Pros and Cons vs SendGrid

K

Knock

+All notification channels in one
+Workflow orchestration
+User preference management
+Free tier is generous
Newer platform
Not for bulk marketing email
Smaller community
S

SendGrid

+Huge volume capacity
+Battle-tested deliverability
+Marketing + transactional in one
Complex UI
Support can be slow
Pricier than alternatives

Should You Use Knock or SendGrid?

Choose Knock if…

  • All notification channels in one
  • Workflow orchestration
  • User preference management

Choose SendGrid if…

  • Huge volume capacity
  • Battle-tested deliverability
  • Marketing + transactional in one

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