Substack has 3 ads in the Meta Ad Library, and 0 were running when we read it on September 21, 2026. Below is a page of creative from Substack’s 2026 advertising campaigns, the formats it uses, and how long the ads stay up.
The creative read here is 100 percent carousel. The median ad ran 1 days and the longest was still up at 24.
Every creative, with its copy, format and run length