Grow your AI niche newsletter by swapping subscribers with complementary writers
You write about AI for accountants. We match you with AI for bookkeepers—complementary audiences, not competing ones. Both newsletters grow. Zero cost.
Join 500+ AI newsletter writers on the waitlist. No spam, ever.
Cross-promotion, intelligently matched
Tell us your niche
Share your newsletter topic, audience size, and growth goals. Our AI analyzes your content and subscriber profile.
Get matched with partners
We find writers with complementary—not competing—audiences. AI for lawyers meets AI for paralegals. Perfect overlap, zero conflict.
Swap & grow together
Recommend each other to your audiences. Both subscriber lists grow organically with highly relevant, engaged readers.
Your Newsletter
AI for Accountants
Subscribers
Matched Partner
AI for Bookkeepers
Built for newsletter writers who want real growth
Grow faster
Tap into established, engaged audiences that are already interested in topics adjacent to yours. Average partners see 15-30% faster subscriber growth.
- Organic, high-quality subscribers
- Better engagement than paid ads
Zero cost to start
No upfront fees, no ad spend, no risk. Cross-promotion is a value exchange—you give recommendations, you get recommendations. Simple.
- No credit card required
- Equal value exchange model
AI-matched partners
Our matching engine analyzes content, audience demographics, and niche proximity to find partners that complement—never compete with—your newsletter.
- Semantic content analysis
- Audience overlap prevention
Simple pricing, serious growth
Start free with manual swaps. Upgrade to Pro when you're ready to scale.
Free
Get started with manual cross-promotion.
- 2 manual swap partners
- Basic matching
- Community access
CrossStack Pro
Everything you need to grow on autopilot.
- AI-powered newsletter matching
- Automated cross-promotion scheduling
- Subscriber growth analytics dashboard
- Priority placement in the network
- Up to 10 active swap partnerships
What writers are saying
“I've been looking for exactly this. Paid ads bring junk subscribers — cross-promotion brings real readers who actually open my emails.”
Sarah K.
AI for Healthcare · 2,400 subs
“The matching is what sold me. I don't want to promote random newsletters. Complementary niches make the recommendation feel natural to my audience.”
Marcus T.
AI for Real Estate · 5,100 subs
“Grew from 800 to 1,200 subscribers in my first month of cross-promoting. And every single one is engaged because they came from a relevant source.”
Priya L.
AI for Educators · 1,200 subs
Common questions
What’s a subscriber swap?
How do you match newsletters?
What size newsletter do I need?
Is it really free to start?
Ready to grow your newsletter
the smart way?
Join the waitlist and be first to get matched with complementary AI newsletter writers.