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MailerLite vs Substack

MailerLite: Solopreneurs and small businesses on a budget. Substack: Writers making money doing the work they believe in. Same fact set for both, straight from each vendor's docs.

MailerLite

Free tier
Free plan: up to 250 subscribers, 2,500 emails/mo
Paid from
$12/mo (Comfort; subscriber-based) · pricing page
Public API
Yes docs
MCP server
Yes · Official hosted MCP server (mcp.mailerlite.com, in developer docs; beta on paid plans)
Best for
Solopreneurs and small businesses on a budget
Website
https://www.mailerlite.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?

MailerLite suits solopreneurs and small businesses on a budget. 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 MailerLite alternatives, Substack alternatives, or the full table.