Subshack

Chrome extension that audits a Substack profile and drafts posts to grow it.

Browser extensionfreemium

Subshack is a Chrome extension that audits a public Substack profile to show which posts and habits actually drive growth, then helps draft structured first drafts and thoughtful replies to other posts, all inside Substack's own pages. It's for Substack writers who want data-informed guidance on what grows their publication.

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Full match profile

Behind the summary, Matchbox keeps a richer profile of Subshack - the signals our matcher actually reads to decide when to surface it. It stays private; claim the listing to see and control it.

Problem & pain-point mapping
Who we surface it to (audience fit)
What it's a strong alternative to
Trust & credibility signals

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