The PMF measurement platform for indie builders

Know if users truly need your product

FitSignal measures product-market fit using the proven Superhuman methodology. Send the 7-question PMF survey, track your score over time, and understand exactly what to build next.

Free plan includes unlimited surveys · No credit card required

40%

The PMF benchmark — % of users who'd be “very disappointed” without your product

7

Scientifically validated questions based on the Rahul Vohra methodology

< 5 min

From sign-up to sending your first PMF survey

Everything you need to measure PMF

Stop guessing whether you have product-market fit. FitSignal gives you the data to know for sure.

PMF Score Tracking

The 7-question PMF survey gives you a single, actionable score. Track it over time and see how product changes move the needle.

Word Cloud Analysis

Automatically extract what users love and what holds them back. Visual word clouds surface the exact language your customers use.

Embeddable Widget

Collect PMF feedback directly inside your app with a lightweight widget. Just paste a script tag — no engineering work.

API & Integrations

Pipe survey data into your existing tools. RESTful API for custom workflows. Webhooks for real-time response events.

Three steps to your PMF score

1

Create & customize

Set up a project, choose the PMF survey template, and personalize questions with your product name.

2

Send to customers

Import customers via CSV and send surveys by email — or embed the widget in your app for passive collection.

3

Analyze & act

See your PMF score, read word clouds of what users love, and prioritize the improvements that matter most.

Built for indie builders & small teams

Enterprise tools are overkill. FitSignal is focused, fast, and priced for bootstrapped companies.

Solo founders validating a new product
Small SaaS teams tracking PMF over time
Product managers prioritizing the roadmap
Teams migrating from Delighted (sunset June 2026)
Anyone using the Superhuman PMF methodology
Builders who want data, not guesswork

Start measuring product-market fit today

Free forever for small projects. No credit card required.