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 ...

Substack, originally a newsletter service, says its app now has millions of users interacting with its creators. By Benjamin Mullin and Jessica Testa Substack began its life as a buzzy newsletter ...

Newsletter publishing company Substack is introducing new tools for international writers and audiences, including local payment methods, support for more currencies and the ability to set a default ...