Subshack is a Chrome extension that works inside the Substack pages you already use. It audits any public Substack profile to show which Notes, posts and habits drive growth, turns a template and a brief into a structured first draft, and lets you reply to a post with suggestions that answer what it actually argues. Prompts, variables and tone are yours to edit — nothing is ever published for you.
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Subshack
AI video with native sound, paid per clip. Nothing stored.
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2Subshack
Built this after burning an afternoon staring at Substack's own stats and getting no real answer on why a post flopped. The audit is free, needs no login, and just tells you what to fix first instead of handing you a vanity score. Would love to know what it gets wrong on your profile.
Building PZERO, saving you money - pzero.studio
Running a Substack audit scored out of 100 inside Chrome, then drafting from a template that only publishes when you click, keeps the workflow honest. If you ever need AI for the newsletter business side, PZERO is at pzero.studio.