Validate product-market fit with the Sean Ellis test

The single most important metric for early-stage startups. Find out if users truly need your product before scaling.

What is the PMF Survey?

The PMF (Product-Market Fit) survey, created by Sean Ellis, asks one powerful question:

"How would you feel if you could no longer use [Product]?"

Users choose from four options:

Very disappointed

These are your core users. They can't live without your product. This is what you want.

Somewhat disappointed

They like your product but could find alternatives. Room to improve.

Not disappointed

Your product hasn't become essential to them yet. Need to dig deeper.

N/A - No longer use

Already churned or never activated. Different problem to solve.

The PMF Benchmark

40%+ "Very Disappointed" = Product-Market Fit

If 40% or more of surveyed users say they'd be "very disappointed" without your product, you've likely achieved product-market fit.

Why PMF is the most important metric

Know when to scale

Scaling before PMF is the #1 startup killer. Don't pour fuel on a fire that isn't lit yet.

Guide product decisions

Follow-up questions reveal what "very disappointed" users love most. Double down on that.

Track progress over time

Run PMF surveys quarterly. Watch your "very disappointed" percentage grow as you improve.

How to interpret your PMF score

0-20%
No fit yet

Your product hasn't found its audience or solved a real problem. Time to pivot or iterate significantly.

20-40%
Getting closer

Some users love you, but not enough. Focus on understanding what the "very disappointed" users have in common.

40%+
Product-Market Fit achieved

You've built something people need. Time to optimize growth channels and scale. Congratulations!

How HappyPanda makes PMF surveys easy

1

Pre-built PMF survey template

The Sean Ellis question is ready to go. Just configure when and where to show it.

2

Automatic score calculation

We calculate your PMF percentage in real-time. Watch it update as responses come in.

3

Follow-up questions included

Ask "What would you use instead?" and "What's the main benefit?" to understand the why.

4

Segment by user type

Filter results by user cohort, plan, or behavior. Find which segments have the strongest fit.

Find out if you have product-market fit

Set up your PMF survey in minutes. Know your score by the end of the week.