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AWeber vs Substack
AWeber: Email marketing for small businesses. Substack: Writers making money doing the work they believe in. Same fact set for both, straight from each vendor's docs.
AWeber
- Free tier
- Free plan, up to 500 subscribers (3,000 emails/mo)
- Paid from
- $12.49/mo (Lite, annual billing); scales with subscriber count · pricing page
- Public API
- Yes docs
- MCP server
- Community · Third-party only (e.g. Zapier MCP); none from AWeber
- Best for
- Email marketing for small businesses
- Website
- https://www.aweber.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?
AWeber suits email marketing for small 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 AWeber alternatives, Substack alternatives, or the full table.