Newsletter Spy

Newsletter Spy

A database of 20,000+ Substack newsletters

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Newsletter Spy is a database of 20,000+ Substack newsletters and includes information like the number of subscribers, the launch date, and engagement metrics.

Newsletter Spy

Launch date
Newsletter Spy 2.0
Newsletter Spy 2.0 A database of 100,000+ newsletters

Launched on September 2nd, 2021

Newsletter Spy
Newsletter Spy A database of 20,000+ Substack newsletters

Launched on December 7th, 2020