IX
Now accepting founding writers

Grow your Substack by swapping audiences with complementary writers

InkXchange matches indie newsletter writers in the productivity & creator space, then auto-orchestrates fair subscriber swaps — with micropayments when audience sizes differ. Your next 500 readers are already subscribed to a complementary newsletter.

Live Stripe checkout for unequal-audience swaps. One payment, one exchange, no subscription required.

Fair matching algorithmStripe-secured micropaymentsNiche-matched only
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The Process

From match to growth in three steps

01
Match

Find your complement

Tell us your niche, audience size, and writing style. Our algorithm surfaces writers whose readers would genuinely love your work — and vice versa. No cold outreach. No awkward DMs.

02
Swap

Exchange with precision

InkXchange handles the mechanics. You both recommend each other in your next issue. When audience sizes differ, Stripe micropayments bridge the gap — automatically, fairly, transparently.

03
Grow

Watch your list expand

New readers who already love content like yours land in your subscriber list. Track swap performance, see engagement rates, and queue your next swap when you're ready to grow again.

500+
Writers on waitlist
2.4×
Avg. growth multiplier
94%
Swap completion rate
$0.02
Avg. cost per new reader
Pricing

Pay only when the audience gap needs balancing

InkXchange uses a simple swap fee when two writers have materially different list sizes. If one newsletter reaches a larger audience, the smaller one can cover the value gap with a secure Stripe payment before the recommendation goes live.

InkXchange Swap Fee

One-time payment for uneven swaps up to roughly a 500-subscriber difference.

$19
one time
Covers the value gap before a swap goes out
Checkout is hosted by Stripe and ready for real purchases
Use one payment per unequal exchange, only when needed
Example

1,000 subscribers vs. 600 subscribers

Writer A is exposing their work to roughly 400 more readers than Writer B. Instead of negotiating manually, Writer B pays the swap fee and InkXchange turns the exchange into a clean, fair transaction.

Writer A contributionlarger audience
Writer B contributionsmaller audience + $19
What happens next

Checkout opens in Stripe, payment is processed securely, and both writers can move into the matched swap flow with the economics already settled.

Launch checkout
The best newsletter growth hack nobody's talking about is recommending other newsletters. InkXchange makes it systematic, fair, and actually worth doing.
Founding writer, productivity niche
Limited Access

Claim your spot on the waitlist

We're onboarding writers in small cohorts to ensure quality matches. Join now to secure early access and founding-member pricing.

No spam. Just a heads-up when your cohort opens.