LettrBridge matches indie newsletter writers and lets you swap subscriber lists — both grow, zero ad spend.
Join the WaitlistHow it works
Link your Substack in seconds. We analyze your niche, audience size, and growth stage.
Our algorithm pairs you with complementary writers — same niche, similar audience, compatible voice.
Both writers cross-promote to each other's lists. Mutual growth, no money changes hands.
Join 500+ Substack writers
already on the waitlist
Productivity · Self-help · Focus · Morning routines · Deep work
$29 one-time — founding price
Secure checkout via Stripe. One-time payment, no subscription.
Early access
Secure your spot now. We'll notify you the moment LettrBridge opens — and match you with your first swap partner on day one.
No spam. Unsubscribe anytime. We respect your inbox — obviously.