Home › Compare › Sailthru (Zeta Global) vs Substack
Sailthru (Zeta Global) vs Substack
Sailthru (Zeta Global): Media, publishing, and retail brands. Substack: Writers making money doing the work they believe in. Same fact set for both, straight from each vendor's docs.
Sailthru (Zeta Global)
- Free tier
- No free plan; demo-led
- Paid from
- Custom quote · pricing page
- Public API
- Yes docs
- MCP server
- No · No official or community MCP server found (July 2026).
- Best for
- Media, publishing, and retail brands
- Website
- https://zetaglobal.com/sailthru/
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?
Sailthru (Zeta Global) suits media, publishing, and retail brands. 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 Sailthru (Zeta Global) alternatives, Substack alternatives, or the full table.