FitSignal

Everything you need to measure PMF

From survey creation to actionable insights — FitSignal is the complete product-market fit measurement platform.

PMF Survey Engine

The 7-question survey that tells you everything

Based on the Rahul Vohra methodology, our survey engine asks the right questions to quantify product-market fit. Customize the product name, choose delivery channels, and collect responses from the people who matter.

  • Pre-built 7-question PMF template — scientifically validated
  • Customize with your product name for personalized surveys
  • Send via email, shareable link, or embeddable widget
  • Mobile-friendly survey experience for higher completion rates
PMF Score & Analytics

One number that tells you where you stand

Your PMF score — the percentage of users who'd be "very disappointed" without your product — is calculated in real-time. Track it over time, compare periods, and see how product changes move the needle.

  • Real-time PMF score with confidence indicator
  • Score distribution breakdown (very / somewhat / not disappointed)
  • Trend tracking over weeks, months, and quarters
  • Period comparison to measure impact of product changes
Word Cloud Analysis

Hear your customers in their own words

Free-text responses are automatically analyzed into visual word clouds. See what your power users love (benefits) and what on-the-fence users wish was better (improvements). Filter by persona for laser-focused insight.

  • Automatic keyword extraction from open-ended responses
  • Separate clouds for benefits and improvement requests
  • Filter by PMF answer segment for targeted insights
  • Export analysis for team presentations
Persona-Level Breakdown

Find your beachhead market

Your overall PMF score might be 25%, but a specific customer segment could be at 60%. Assign personas to customers and see PMF scores broken down by segment to find — and double down on — your best-fit users.

  • Create custom personas for your customer segments
  • Auto-assign personas based on customer fields
  • Per-persona PMF score and response breakdown
  • Target persona filtering across all analytics views
Embeddable Widget

Collect feedback inside your product

Add a lightweight JavaScript widget to your app to passively collect PMF feedback. Customers see the survey at the right moment, no email needed. Just paste a script tag — no engineering overhead.

  • Single script tag installation — works with any stack
  • Configurable trigger conditions (delay, page count, etc.)
  • Respects survey frequency limits to avoid fatigue
  • Custom branding on Professional plan and above
API & Integrations

Build PMF measurement into your workflow

RESTful API for programmatic access to surveys, responses, and scores. Use webhooks to trigger workflows when new responses arrive. Import customers from your existing tools.

  • Full REST API with API key authentication
  • Webhook events for new responses and score changes
  • CSV import/export for customers and responses
  • Rate-limited and documented for production use
Email Delivery

Send surveys that actually get opened

Our email delivery system handles the logistics of getting surveys into inboxes. Track delivery status, open rates, and response rates. Schedule sends or trigger them from your workflow.

  • Reliable delivery via Resend
  • Per-recipient delivery tracking and status
  • Customizable sender name and reply-to address
  • Automatic reminder scheduling (coming soon)
Security & Privacy

Your data, protected

We take security seriously. Data is encrypted in transit and at rest. We never sell your data. You remain the controller of all customer data you upload.

  • TLS encryption for all data in transit
  • SOC 2 Type I compliance (in progress)
  • GDPR-ready with data export and deletion
  • Rate limiting and abuse prevention

Ready to start measuring?

Create your free account and send your first PMF survey in minutes.

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