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 ...

Caroline Chambers is Substack's top cooking newsletter. She's turning to video and Instagram to grow her business.

Substack has reached more than 5 million paid subscriptions for the first time, the company said this week. The updated audience total comes just four months after the digital journalism and content ...

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 ...