Free to start · AI-powered PMF discovery

Free Product-Market Fit Survey Tool for Startups

Run a Sean Ellis PMF survey on a synthetic panel of 50 target customers in 10 minutes — get your PMF score, Van Westendorp pricing data, and the top jobs-to-be-done your product solves.

No panel recruitment needed · Results in ~10 minutes

Sean Ellis
PMF framework
50
Synthetic respondents
10 min
Full survey
Van Westendorp
Pricing data

How it works

1

Describe your product

Enter your product's value proposition, target customer, and the core job it solves. No survey design needed.

2

AI runs the survey

HeyMojo generates 50 synthetic target customers and interviews each one against the Sean Ellis framework.

3

Get your PMF report

See your PMF score, pricing sweet spot, top JTBD themes, main objections, and what to build next.

What you get

Sean Ellis Score

The gold-standard PMF metric: what % of users would be very disappointed without your product. 40%+ = PMF.

Van Westendorp Pricing

Find your product's price acceptability range — where it's too cheap, acceptable, and too expensive.

Jobs-to-be-Done Themes

Cluster the core jobs your customers are hiring your product to do, from their own words.

Top Objections

The most common reasons synthetic customers hesitate — what's blocking conversions.

Emotional Map

Understand your customers' emotional state: frustrated, neutral, excited, loyal.

Drill-Down Differentials

Compare PMF signal between customer segments to find your strongest beachhead market.

Pro Feature

Included with a free HeyMojo account

Start free. Upgrade when you need more.

Frequently asked questions

What is a Sean Ellis PMF survey?
The Sean Ellis test asks users: 'How would you feel if you could no longer use this product?' If 40%+ say 'very disappointed,' you've hit product-market fit. It's the benchmark used by Dropbox, Superhuman, and hundreds of successful startups.
How does synthetic respondent testing work?
HeyMojo uses AI to generate 50 realistic customer personas that match your target ICP, then simulates their survey responses based on how people in that profile actually think about products. It's a fast proxy for real user research — useful before you have a customer base to survey.
Is synthetic data as good as real survey data?
No — but it's much faster and useful for hypothesis validation before committing to a direction. Think of it as a fast sanity check. Once you have real users, HeyMojo supports sending the same survey to them.
What is Van Westendorp pricing analysis?
The Van Westendorp model asks customers four price questions to identify the acceptable price range — where your product is too cheap (credibility concern), acceptable, expensive but acceptable, and too expensive. It helps you set pricing with confidence.
Do I need a live product to run this?
No. The PMF survey can be run on a product idea, MVP, or live product. At idea stage it helps validate before you build; post-launch it helps you understand where you stand.

Know where you stand on PMF in 10 minutes

No panel recruitment. No survey design. Just your hypothesis and 10 minutes.

No panel recruitment needed · Results in ~10 minutes