CloudMailin vs Knock

See how their public offers line up before you choose your own position. Prices stay in the currency, billing schedule, and charged unit each vendor publishes.

CloudMailin

See full pricing history

USD · US · source: www.cloudmailin.com

Plan	Pricing	Charged by	Offer type
Free	Free Free; 10,000 emails/month	Flat · monthly subscription	Standalone · Free
Starter	USD 25 monthly $25/month	Flat · monthly subscription	Standalone · Fixed
Professional	USD 45 monthly $45/month	Flat · monthly subscription	Standalone · Fixed
Premium	USD 85 monthly $85/month	Flat · monthly subscription	Standalone · Fixed
Corporate	USD 200 monthly $200–$1,799/month	Flat · monthly subscription	Standalone · Starting at

Knock

See full pricing history

USD · US · source: knock.app

Plan	Pricing	Charged by	Offer type
Developer	Free $0/month	Flat · monthly subscription	Standalone · Free
Starter	USD 250 monthly $250/month including 50,000 messages; then $0.005/message	Usage · monthly platform fee plus message usage	Standalone · Usage based
Enterprise	Contact sales Contact us	Flat · monthly subscription	Standalone · Contact sales

What each plan includes

Feature names follow each vendor’s own pricing page, so verify the wording before treating them as exact equivalents.

CloudMailin

Free

Official plan card Emails: 10,000/month

Limited
Official plan card Message size: 512 KB

Limited
Official plan card Card required: No

Limited

Starter

Official plan card Emails: 10,000/month

Limited
Official plan card Message size: 2 MB

Limited
Official plan card Full-text search: Included

Professional

Official plan card Emails: 20,000/month

Limited
Official plan card Message size: 10 MB

Limited
Official plan card Full-text search: Included

Premium

Official plan card Emails: 40,000/month

Limited
Official plan card Message size: 50 MB

Limited
Official plan card Full-text search: Included

Corporate

Official plan card Emails: 100,000–7 million/month

Limited
Official plan card Message size: 50 MB

Limited
Official plan card API access: Included

Knock

Developer

Official plan card Messages: 10,000/month

Limited
Official plan card Notification workflows: Unlimited

Limited
Official plan card Delivery channels: Unlimited

Limited

Starter

Official plan card Messages: 50,000/month included

Limited
Official plan card Additional messages: $0.005 each

Limited
Official plan card Guides active users: 2,500

Limited

Enterprise

Official plan card Volume discounts: Included
Official plan card Custom roles and permissions: Included
Official plan card Enterprise controls: Included

How their prices changed

Each dated row shows the public prices observed when that vendor’s pricing page changed.

CloudMailin

August 27, 2026 Source
- Free: Free
- Starter: USD 25 monthly
- Professional: USD 45 monthly
- Premium: USD 85 monthly
- Corporate: USD 200 monthly

Knock

August 27, 2026 Source
- Developer: Free
- Starter: USD 250 monthly
- Enterprise: Contact sales