Stop guessing whether you have product-market fit. Start measuring it.
The frameworks, survey templates, and real founder playbooks behind every PMF score — written for founders who need a number they (and their investors) can trust.
How Superhuman went from a 22% PMF score to 58% — and the exact engine you can copy
Rahul Vohra almost shipped a product nobody would have missed. Then he turned one survey question into a growth engine. Here's the play, step by step — and how to run it without building custom tooling.
The Sean Ellis 40% Rule: everything founders need to know
One question predicts whether your startup will grow. We break down the formula, the history, the benchmarks, and what to do when your score lands below 40%.
How to measure product-market fit in 2026 (the complete guide)
Survey score, retention curve, and the two signals that actually prove fit. The end-to-end playbook from your first 40 responses to a Series A.
How to run a PMF survey (step by step, with the exact questions)
Who to survey, when, how many responses you need, and the precise wording that makes the Sean Ellis test work. Plus the template you can launch in five minutes.
How to improve your PMF score (from below 40% to funded)
A score below 40% isn't a verdict — it's a to-do list. The iterative loop that took real startups from "meh" to must-have, broken into steps you can run this month.
