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Comparison · Newsletter platform

Mailable vs Substack

Substack is a publishing platform for newsletters. Here is how it compares to Mailable - vibe email design that ships on-brand email in every inbox.

CapabilityMailableSubstack
Plain English to design
Renders in every inbox (Outlook)
Automated sequences
Landing pages & funnels
Brand kit & guardrails
Headless API & MCP
A/B testing built in
Works with your ESP

Why teams choose Mailable over Substack

1

Substack is a great place to publish; Mailable makes the issue look designed. Build in Mailable, publish in Substack.

2

Mailable adds welcome flows, landing pages, and a brand kit beyond Substack’s editor.

3

Describe the issue in plain English instead of formatting it by hand in Substack.