Knock vs Mailgun

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.

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

Mailgun

See full pricing history

USD · US · source: www.mailgun.com

Plan	Pricing	Charged by	Offer type
Free	Free $0/	Flat	Standalone · Free
Foundation	USD 35 monthly $35/mo	Flat · /mo	Standalone · Fixed
Scale	USD 90 monthly $90/mo	Flat · /mo	Standalone · Fixed

What each plan includes

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

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

Mailgun

Free

Highlights Features include:: Included
Highlights 100 emails per day: Included
Highlights Ticket support: Included
Highlights RESTful email APIs and SMTP relay: Included
Highlights 1 custom sending domain: Included
Highlights Tracking, analytics, and webhooks: Included
Highlights 2 API keys: Included
Highlights Email analytics and reporting: Included
Highlights 1 day log retention: Included
Highlights 1 inbound route: Included

Foundation

Highlights Everything on Basic plus...: Included
Highlights Full access to RESTful email APIs and SMTP relays: Included
Highlights 1,000 custom sending domains: Included
Highlights Email template builder and API: Included
Highlights Tracking, analytics, and webhooks: Included
Highlights 5 days log retention: Included
Highlights 1 day message retention: Included
Highlights Full access to inbound routing: Included

Scale

Highlights Everything on Foundation plus...: Included
Highlights SAML SSO: Included
Highlights 5,000 email validations: Included
Highlights Dedicated IP pools: Included
Highlights Send time optimization: Included
Highlights Live phone & chat support: Included
Highlights 30 days log retention: Included
Highlights Up to 7 days message retention: Included
Highlights Schedule and send analytics reports: Included

How their prices changed

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

Knock

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

Mailgun

August 27, 2026 Source
- Free: Free
- Foundation: USD 35 monthly
- Scale: USD 90 monthly