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Mailmeteor vs Substack

Mailmeteor: Sales, marketing, and recruiting outreach from Gmail. Substack: Writers making money doing the work they believe in. Same fact set for both, straight from each vendor's docs.

Mailmeteor

Free tier
Free Hobby plan: 50 emails/day, 500 emails/month
Paid from
$5.99/mo (Starter, per user) · pricing page
Public API
No
MCP server
Community · No official vendor MCP; Mailmeteor actions exposed via Zapier MCP
Best for
Sales, marketing, and recruiting outreach from Gmail
Website
https://mailmeteor.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?

Mailmeteor suits sales, marketing, and recruiting outreach from gmail. 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 Mailmeteor alternatives, Substack alternatives, or the full table.