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MailerSend vs Substack
MailerSend: Transparent pricing from side projects to agencies. Substack: Writers making money doing the work they believe in. Same fact set for both, straight from each vendor's docs.
MailerSend
- Free tier
- Free: 500 emails/mo (card required, not charged)
- Paid from
- $5.60/mo billed yearly (Hobby, 5,000 emails) · pricing page
- Public API
- Yes docs
- MCP server
- Yes · Official MCP server (beta), hosted at mcp.mailersend.com/mcp; docs at developers.mailersend.com/mcp
- Best for
- Transparent pricing from side projects to agencies
- Website
- https://www.mailersend.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?
MailerSend suits transparent pricing from side projects to agencies. 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 MailerSend alternatives, Substack alternatives, or the full table.