Turn Your Subscriber Data into Actionable Insights
The AI-powered CRM that unifies your Substack and Gumroad audience. Ask questions in plain English and grow your publication with confidence.
The AI-powered CRM that unifies your Substack and Gumroad audience. Ask questions in plain English and grow your publication with confidence.
Your subscribers aren’t just names on a list. They are high-signal behaviors, engagement patterns, and purchase potential. But who has time to dig through CSVs?
StackContacts connects your tools and lets you talk to your data. No complex SQL. No manual VLOOKUPs. Just answers.
Find your "Superfans" before they churn, identify the exact Notes that drive revenue, and personalize your outreach with AI-generated subscriber dossiers.
Join 500+ creators turning data into revenue.
We respect your privacy. Data stays on your local Mac.
Securely link your Substack, Gumroad, and Kit accounts. We use OAuth and encrypted API keys to ensure your credentials stay safe.
Download your entire ecosystem—subscribers, events, and purchase history—into a high-performance local DuckDB database. Your data never leaves your Mac.
Talk to your data in plain English. Use built-in AI insights or connect Claude and Cursor to find your super-fans and drive revenue.
Ask Claude or Cursor questions like "Who are my top 10% revenue opportunities?" and get instant segments back.
Automatically syncs Substack DMs, subscriber events, and Gumroad sales into a single source of truth.
Your data never leaves your Mac. StackContacts uses a local DuckDB database for lightning-fast, private analysis.
Generate deep-dive profiles for your most important subscribers to prepare for high-ticket sales or collaborations.
Finally see exactly which Substack Note or email topic directly led to a Gumroad purchase.
Native MacOS application built to leverage Apple Silicon for processing thousands of events in seconds.