How it works
Three steps to compounding growth
01
Connect your Substack
Link your publication in seconds. We read your niche, audience size, and content style — no manual tagging required.
02
Get matched with complementary writers
Our algorithm finds newsletters your readers would love — similar audience, different angle. No competitors, only partners.
03
Auto-swap subscriber recommendations
Lettrex handles the cross-promotions automatically. Your subscribers discover great newsletters. Theirs discover you.
Early access
Join 500+ indie writers already waiting
The waitlist is growing fast. Writers who sign up early get priority access and founding member pricing.
“Finally, a growth tool that feels native to the newsletter world.”
Writer, 4.2k subs
“I grew 300 subscribers in my first month without spending a dollar on ads.”
Creator, 1.8k subs
“The matching is surprisingly good — they paired me with writers I'd never have found.”
Newsletter, 9k subs