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 ...

While TikTok and Instagram reels make headlines, Substack has been racking up cool‑girl points in the background. Founded in 2017, Substack has grown into something culturally potent. By 2025, the ...

Here’s a jaw-dropping statistic: 45 Substack publishers are earning more than $1 million annually in recurring subscription revenue. And they’re not all household names or media moguls. Many of them ...