Newsletter Spy is a database of 20,000+ Substack newsletters and includes information like the number of subscribers, the launch date, and engagement metrics.
Gain valuable insights into the performance of over 100,000 newsletters. Study the critical trends, discover sponsorship opportunities, and find acquisition targets.
Newsletter Spy is a database of 20,000+ Substack newsletters and includes information like the number of subscribers, the launch date, and engagement metrics.
