Upload your Sean Ellis PMF survey and get a real score, a profile of who your fans are, and a roadmap of what to build next — in under a minute.
APPROACHING PMF
Drag to see how the Sean Ellis 40% rule reads your survey
Download a free, ready-made Sean Ellis survey spreadsheet — the same Q1–Q4 format Validdy reads. No signup, no email required.
Download free template (.xlsx).xlsx · EN & UA
Fill it in with your customers' answers, then come back to upload it above.
Drop in your CSV or Excel export — Typeform, Google Forms, or anywhere else you collected answers.
Not just the disappointment score — every open-text answer, so you learn exactly who loves you and exactly what's stopping the rest.
A 50/50 build plan: half your next sprint doubles down on what fans already love, half turns skeptics into fans.
43%
would be very disappointed without you — above the 40% PMF line
In their own words
"It replaced three separate spreadsheets we used to juggle."
Top skeptic blocker
Pricing feels steep for a pre-seed team — 22% conversion potential
One report
$1
One upload, one full analysis, no subscription. $1 while we're in early access.
It's a single-question survey created by growth pioneer Sean Ellis: "How would you feel if you could no longer use this product?" Respondents answer very disappointed, somewhat disappointed, or not disappointed. It's become the standard, lightweight way early-stage startups measure product-market fit.
Sean Ellis's original rule of thumb: if 40% or more of respondents say they'd be "very disappointed" without your product, that's a strong signal of product-market fit. Below that, most startups still have real work to do on the product itself before pushing hard on growth.
The percentage itself is computed deterministically from your response counts, not guessed by AI - so the same survey always produces the same score. On top of that number, Claude (Anthropic's AI) reads your open-ended answers to build a fan/skeptic breakdown, pull real marketing phrases from your fans' own words, and suggest what to prioritize next.
There's no hard minimum, but the Sean Ellis method gets noisier with very small samples - most practitioners consider 40-100+ responses a reasonable range for a directionally reliable score. You can upload whatever you have; the report will simply reflect the sample size you give it.
CSV or Excel (.xlsx) exports from whatever tool you ran your survey in (Typeform, Google Forms, SurveyMonkey, etc.) work fine. If you haven't run the survey yet, Validdy also offers a free, ready-to-use Sean Ellis survey template you can send to your users first.
Yes - your responses are processed to generate your report and are not shared, resold, or used to train any models beyond that single analysis.
Validdy is a new, early-stage tool and this is intentionally priced near cost while it's still proving itself with real users - not a long-term promotional price, but not a subscription trap either. One report, one score, no recurring charge.
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