Writers and publishers on newsletter platform Substack are facing an unwelcome dilemma amid new changes to mobile subscriptions. In-app payments (IAPs) were launched this week, meaning Substack app ...

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 ...

This article was migrated from an old version of our website in 2025. As a result, it might have some low-quality images or non-functioning links - if there's any issues you'd like to see fixed, get ...