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SendLayer vs Substack

SendLayer: Email deliverability without high costs. Substack: Writers making money doing the work they believe in. Same fact set for both, straight from each vendor's docs.

SendLayer

Free tier
No free plan; 14-day trial (up to 200 emails)
Paid from
$5/mo billed annually (Starter, 1,000 emails) · pricing page
Public API
Yes docs
MCP server
Yes · Official hosted MCP server; docs at developers.sendlayer.com/integrations/ai-tools/mcp-server
Best for
Email deliverability without high costs
Website
https://sendlayer.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?

SendLayer suits email deliverability without high costs. 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 SendLayer alternatives, Substack alternatives, or the full table.