Substack loves a party. Tag along with Business Insider reporter Sydney Bradley as she spends a day inside Substack's world.

Substack is officially launching its Android app following beta tests, the company announced on Tuesday. The rollout of the Android app comes six months after Substack introduced its iOS app. The ...

Substack has been doing a pretty good job of differentiating itself from the Facebooks and Xs (exes?) of this world. Instead of being plagued by algorithms and ads pushing content that users never ...

If you subscribe to a lot of Substack writers and are now finding your email inbox inundated with newsletters, today is your lucky day. Substack, the subscription newsletter platform, has just ...

PCWorld reports that Substack experienced a data breach in October 2025, exposing email addresses and phone numbers of approximately 697,000 users. The company discovered the security flaw on February ...

Sign up for the daily CJR newsletter. Substack, a hosting and publishing platform for email newsletters, took what seemed like an innocuous step last week: it ...

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