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Campaign Monitor vs Substack
Campaign Monitor: Straightforward email marketing for growing businesses. Substack: Writers making money doing the work they believe in. Same fact set for both, straight from each vendor's docs.
Campaign Monitor
- Free tier
- Free tier framed as 30-day trial (500 contacts, 500 emails)
- Paid from
- $12/mo (Lite); subscriber-count based · pricing page
- Public API
- Yes docs
- MCP server
- Community · Community MCP servers only
- Best for
- Straightforward email marketing for growing businesses
- Website
- https://www.campaignmonitor.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?
Campaign Monitor suits straightforward email marketing for growing businesses. 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 Campaign Monitor alternatives, Substack alternatives, or the full table.