G2 Vendor Directory

Courier

#20 in Proactive Notification

San Francisco, California

1

Products on G2

59

Total reviews

4.5

Avg. star rating

  • Courier ranks #20 in Proactive Notification.
  • Courier's 1 product span 4 categories on G2.
  • Small Business is the largest segment among reviewers, at 74.6%.

Traffic & LLM citations

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

Page views and citations · Courier

Source: G2 review data

Winning from

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

1

Twilio

3 switched
2

Sinch

1 switched

Losing to

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

1

SuprSend

6 switched
2

Knock

1 switched
3

Customer.io

1 switched

Key stats

—

#20

4

Small Business

2019

1,230

San Francisco, California

Adoption by company size

SegmentShare of reviews
Small Business74.6%
Mid-Market22.0%
Enterprise3.4%

Quarterly history

QuarterTotal reviewsAvg. rating
2025 Q114.0