What is Subswell?
A marketplace where newsletters grow by recommending each other.
Updated October 3, 2026 · 1 min read
Subswell connects newsletters in three ways:
- Grow (advertisers): pay a fixed amount for each new subscriber other newsletters send you. You only pay for subscribers who pass the quality check.
- Earn (publishers): recommend other newsletters to your new subscribers, right after they sign up, and earn for each one who subscribes and stays.
- Swap (free): recommend a partner newsletter for free while they recommend yours.
One account can do all three. Start by connecting your email platform under Settings → Newsletter & ESP.
Joins a newsletter
A reader subscribes to Newsletter A
Sees great picks
A's thank-you page recommends newsletters they'll like
One click
They subscribe to Newsletter B, no forms
Quality check
Subswell makes sure they're real and stay
Everyone wins
B gets a real reader, A gets paid