Grow Your Substack on Autopilot
The subscriber-swap network for indie finance writers. Match with non-competing newsletters, exchange readers, and grow together — without spending a dollar on ads.
Finance Writers
200+
on the waitlist
Avg. New Subs/Month
~340
from swaps
Niches Covered
12
finance sub-verticals
The Mechanism
How It Works
Connect Your Substack
Link your newsletter in 60 seconds. We read your niche, your audience size, and your growth goals — no spreadsheets needed.
Get Matched Intelligently
Our algorithm finds non-competing writers in your vertical — personal finance meets side hustles, not personal finance meets personal finance.
Watch Your List Grow
Subscribers discover you through writers they already trust. You get warm, engaged readers — not cold traffic from paid ads.
“Finally a way to grow that doesn't feel gross.”
@indie_finance
”“My open rates stayed high because the readers actually wanted to be there.”
@sideproject_hq
”“Crossed 1k subscribers in 6 weeks. This is the unlock.”
@buildingwealth_
”Get Early Access
Join 200+ finance writers already on the waitlist. Be first when LetterGrow opens its doors.