G2 Vendor Directory

Knock

#2 in Notification Infrastructure

New York, NY

1

Products on G2

149

Total reviews

4.6

Avg. star rating

  • Knock ranks #2 in Notification Infrastructure.
  • Reviews across Knock's portfolio declined 75.0% quarter-over-quarter.
  • Knock's 1 product span 5 categories on G2.
  • Small Business is the largest segment among reviewers, at 75.9%.

Traffic & LLM citations

Monthly G2.com page views and citations by AI answer engines, summed across Knock's products.

Page views and citations · Knock

Source: G2 review data

Winning from

Based on reviewers who said they switched from another vendor's product.

1

Customer.io

2 switched
2

Google

1 switched
3

Novu

1 switched
4

MailerSend

1 switched
5

Amazon Web Services (AWS)

1 switched

Losing to

Based on reviewers of other products who said they switched from Knock.

1

Funnel Leasing

2 switched
2

SOCi

1 switched

Key stats

-75.0%

#2

5

Small Business

2021

24

New York, NY

Adoption by company size

SegmentShare of reviews
Small Business75.9%
Mid-Market22.0%
Enterprise2.1%

Quarterly history

QuarterTotal reviewsAvg. rating
2024 Q4114.7
2025 Q164.8
2025 Q2104.5
2025 Q3274.6
2025 Q444.6
2026 Q144.6
2026 Q244.9
2026 Q315.0