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Keila vs Substack
Keila: Privacy-conscious newsletters powered by open source. Substack: Writers making money doing the work they believe in. Same fact set for both, straight from each vendor's docs.
Keila
- Free tier
- Free self-hosted (open source); no free cloud plan
- Paid from
- EUR 8/mo (Keila Cloud XS, 2,000 emails/mo) · pricing page
- Public API
- Yes docs
- MCP server
- Community · Community server (gwbischof/keila-mcp); none from the vendor.
- Best for
- Privacy-conscious newsletters powered by open source
- Website
- https://www.keila.io
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?
Keila suits privacy-conscious newsletters powered by open source. 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 Keila alternatives, Substack alternatives, or the full table.