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Kajabi Email vs Substack

Kajabi Email: Creators replacing separate email tools with an all-in-one platform. Substack: Writers making money doing the work they believe in. Same fact set for both, straight from each vendor's docs.

Kajabi Email

Free tier
30-day free trial
Paid from
$69/mo Kickstarter ($55/mo annual), marketing emails included, 250 contacts · pricing page
Public API
Yes docs
MCP server
Yes · Official Kajabi MCP; can draft/edit emails, read-only by default
Best for
Creators replacing separate email tools with an all-in-one platform
Website
https://kajabi.com

Substack

Free tier
Free to publish, no subscriber cap
Paid from
No monthly fee; 10% of paid subscription revenue plus Stripe fees · pricing page
Public API
Yes docs
MCP server
Community · Community servers on GitHub only
Best for
Writers making money doing the work they believe in
Website
https://substack.com

Which one?

Kajabi Email suits creators replacing separate email tools with an all-in-one platform. Substack suits writers making money doing the work they believe in. Pricing changes; the fact tables above link both vendors' live pricing pages. For the rest of the field, see Kajabi Email alternatives, Substack alternatives, or the full table.