Grow your Substack
without spending
a dime on ads
Penflo automatically matches you with non-competing productivity writers and swaps subscriber recommendations — so you grow together, not against each other.
Free during beta · No credit card needed
Three steps to your
next 500 subscribers
Connect your Substack
Link your newsletter in 30 seconds. We read your niche, size, and engagement — nothing else.
Match with a compatible creator
Our algorithm finds writers in adjacent niches — productivity, ADHD, focus, wellness — who won't cannibalize your audience.
Swap audiences automatically
Each of you recommends the other to your subscribers via a natural, editorial mention — no awkward cross-posts.
The way writers
actually grow
Newsletters grow best through trusted recommendations. Penflo systematizes what the best creators already do informally — but with matching, consent, and control built in.
Freewhile it's beta.
Simple when it's not.
Paid plans starting at $19/mo — launch pricing for early members. Free during beta, no credit card required.
- Up to 3 swaps per month
- Manual match approval
- Email support
- Unlimited swaps
- AI-powered matching
- Analytics dashboard
- Priority support
Your next 500 subscribers
are already writing
Join the Penflo waitlist and be first to access the platform when we launch.