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Knock vs Twilio(2026)

Knock is better for teams that need all notification channels in one. Twilio is the stronger choice if market leader for sms/voice. Knock is freemium (from $0 (10,000 notifications/month free)) and Twilio is paid (from $0.0079/SMS).

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

By Bikram Nath

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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
Twilio logo

Twilio

paid

Twilio provides programmable SMS, voice calls, video, and email APIs used by 280,000+ businesses.

Starting at $0.0079/SMS

Visit Twilio

How Do Knock and Twilio Compare on Features?

FeatureKnockTwilio
Pricing modelfreemiumpaid
Starting price$0 (10,000 notifications/month free)$0.0079/SMS
Multi-channel (email, SMS, push, in-app)
Notification templates
Workflow builder
Notification preferences
Batching and digests
SMS API
Voice calls
WhatsApp API
Verify (OTP)
SendGrid (email)
Segment (data)

Knock Pros and Cons vs Twilio

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
T

Twilio

+Market leader for SMS/voice
+Excellent documentation
+Global reach (180+ countries)
+Verify for OTP
Can be expensive at scale
Complex pricing structure
Overkill if you only need email

Should You Use Knock or Twilio?

For most teams, Knock is the better default: it offers all notification channels in one and is freemium (from $0 (10,000 notifications/month free)). Choose Twilio instead if market leader for sms/voice matters more than newer platform. There is no universal winner — the right pick depends on your budget, team size, and whether you value all notification channels in one or market leader for sms/voice more.

Choose Knock if…

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

Choose Twilio if…

  • Market leader for SMS/voice
  • Excellent documentation
  • Global reach (180+ countries)

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