Newsletter Spy

Newsletter Spy

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

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Newsletter Spy 2.0
Gain valuable insights into the performance of over 100,000 newsletters. Study the critical trends, discover sponsorship opportunities, and find acquisition targets.
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Newsletter Spy
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 image

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