Get your Substack to 1,000 paid subscribers.
Subsurface turns your subscriber export into an audience intelligence dashboard — so you know who's at risk of churning, who's ready to convert, and exactly where to focus to grow paid.
Upload your CSV. Private. Local. Instant.
Everything Substack doesn't tell you
Deep analytics built specifically for independent newsletter creators.
Engagement Cohorts
7 behavioral segments: Ghost, Dormant, At-Risk, Champion, and more — so you know exactly how to treat each reader.
Churn Risk Scoring
Score every paid subscriber. See revenue at risk before cancellations happen, and act before it's too late.
Revenue Intelligence
MRR, ARR, LTV breakdown. Pareto analysis of your top revenue contributors. Understand what drives your income.
Domain Breakdown
Who's corporate, personal, academic, or gov? Spot your power readers and understand your audience's professional makeup.
Media Kit Generator
PDF sponsorship report with real audience demographics. Ready to send to potential sponsors in one click.
Acquisition Analysis
Where your subscribers actually come from — organic vs paid acquisition sources, so you can double down on what works.
Your audience, decoded
Every subscriber automatically placed into one of 7 behavioral segments. No manual tagging required.
Ghost
Never engaged — win-back candidates
Dormant
Went quiet — re-engagement opportunity
Web-First
Opens site, skips emails — optimize delivery
At-Risk
Paying subscribers disengaging — act now
Promising
New and active — nurture them
Champion
High-value, highly engaged — leverage them
Loyal
Consistent readers — prime to convert to paid
Simple, transparent pricing
Three options. No hidden fees.
Try it out
$0
Explore the full dashboard with sample data. No signup required.
- Full dashboard preview
- All 7 cohort segments
- Churn risk demo
- Revenue metrics
- Media kit preview
Monthly
$14.99/mo
Everything you need to grow your newsletter business.
- Unlimited subscribers
- Full analytics suite
- Churn risk scoring
- Revenue intelligence
- Media kit PDF generator
- Acquisition analysis
- Priority support
save 17%
Annual
$150/yr
Same as monthly, billed annually.
- Unlimited subscribers
- Full analytics suite
- Churn risk scoring
- Revenue intelligence
- Media kit PDF generator
- Acquisition analysis
- Priority support