Substack is giving readers a way to estimate how much of a newsletter was written by AI, signaling a broader shift toward ...

As TikTok's future in the U.S. remains in limbo, startup Substack is going after video creators in a move to expand its platform. The San Francisco startup on Thursday announced that creators can now ...

Newsletter subscription platform Substack will begin taking advantage of an option on the U.S. App Store that allows users to make purchases outside of Apple’s in-app purchasing system. This ...

Tens of millions of people visit Substack every week. Hundreds of thousands of people write their own Substack newsletters. A few dozen people are making millions of dollars a year on paid Substack ...