A/B Testing newsletters

NewsletterFIT tracks 10 newsletters that cover A/B Testing as a primary topic, 8 of them with posts in the last 90 days. By publicly shown subscriber count, the largest are Marketing Ideas (112K), Product Guru's (13K) and Tech Growth Series: PrepVector (10K). Brands detected sponsoring these newsletters recently include Gumloop, DoWhatWorks and AdKit.

Updated Oct 30, 2026 · sorted by publicly shown subscribers · methodology

  1. 1
    Marketing Ideas 112K subscribers

    Substack Weekly · last post 14 days ago

    Likely audience: Product managers

    Sponsors detected: Gumloop, AdKit, Ahrefs

  2. 2
    Product Guru's 13K subscribers

    Substack Several times a week · last post 16 days ago

    Likely audience: Product managers

  3. 3
    Tech Growth Series: PrepVector 10K subscribers

    Substack Monthly or less · last post 58 days ago

    Likely audience: Product Managers

  4. 4
    Delivering Value with Andrew Capland 3K subscribers

    Substack Every two weeks · last post 7 days ago

    Likely audience: Heads of Growth

  5. 5
    DoWhatWorks 1K subscribers

    Substack Every two weeks · last post 14 days ago

    Likely audience: Product managers

    Sponsors detected: DoWhatWorks

  6. 6
    Product Party 1K subscribers

    Substack last post Jun 2, 2026

    Likely audience: Product Managers

  7. 7
    The Real Heroes of Ecommerce —

    Substack Every two weeks · last post 27 days ago

    Likely audience: Marketing managers

  8. 8
    The Lead Engine by AnyBiz —

    LinkedIn Every two weeks · last post 7 days ago

    Likely audience: Sales managers

  9. 9
    ZeeMail —

    beehiiv Monthly or less · last post 24 days ago

    Likely audience: Email marketers

  10. 10
    The Launcher —

    Substack last post Jan 9, 2025

    Likely audience: Startup founders

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