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Substack Is Quietly Building an Ad Network for Newsletters
Substack says its first flagship sponsors are putting millions into creators, turning paid newsletter trust into brand inventory without calling itself an ad platform.
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Substack says its first flagship sponsors are putting millions into creators, turning paid newsletter trust into brand inventory without calling itself an ad platform.

The $1.1 billion price implies roughly 24 times forward revenue, all of it earned by taking a flat 10% of writer subscriptions — a cut Beehiiv and Ghost are undercutting at the top.

A $5/month Substack subscriber nets the writer $4.01 — and an iOS sign-up in year one stacks Apple's 30% on top of that.