Know what to do today
Get a prioritized queue of growth actions based on your actual publication, content, audience and relationship data.
Press kit
For podcast hosts, journalists and creator communities
Turn your Substack data into your next growth actions.
Subshack analyzes your publication, audience and growth signals, then tells you what to do next, why it matters, and where to act.
For active Substack creators who have data, content and an audience, but still find themselves asking: “What should I actually do next to grow?”
- Free nowSubshack 1.0 is free to install and use.
- Creator-controlledNothing publishes or sends without the creator choosing it.
- Browser-basedAvailable for Chrome, Firefox and Chromium browsers.
The problem
You already have the data. Subshack turns it into decisions and concrete actions.
A creator can see views, opens, replies and new subscribers in different places, but those numbers do not answer the practical question: what should I repeat, fix or follow up on today?
Stop asking “what do these numbers mean?” Start with “what should I do today?”
Observe → Understand → Prioritize → Act → Measure → Repeat
Product overview
Four questions Subshack answers
One workspace that moves from evidence to priority, then from priority to creator-controlled action.
Know what content to repeat
Identify the Notes and articles associated with subscriber outcomes, not just engagement, reach or opens.
Know who to focus on
Find prospects, superfans, followers and creator relationships worth your attention using real signals and recency.
Turn insights into action
Prepare follow-ups, Welcome DMs, conversion actions and other workflows from the recommendation. Automatic sending starts only after the creator explicitly turns Welcome on. Daily limits, quiet hours and pause controls apply.
Why the action matters
Today sets the priority. Results explains why.
Compare Notes and articles by reach, engagement, opens and subscriber attribution. Subshack uses that evidence to surface the formats, relationships and follow-ups worth acting on next.
Every recommendation stays connected to the signal that produced it.
Free starting point
Start with the free Profile Audit
Find the obvious growth blockers in 10 seconds. Then connect Subshack to turn your real publication data into ongoing actions.
Ready to use
Copy for introductions and show notes
Short, accurate language that can be quoted or adapted.
Subshack is a free growth workspace that turns a creator’s real Substack data into prioritized, evidence-backed actions.
Subshack analyzes publication, audience, content and relationship signals, then tells active Substack creators what to do next, why it matters and where to act. Today prioritizes the work; Results shows the evidence; and creator-controlled workflows help turn the recommendation into action.
For interviews and coverage
Start with a real profile, then see what Subshack adds.
Run the public audit in seconds, or contact 404-DEV, INC. for press and podcast requests.