FitSignal

I've spent years as a product manager watching teams obsess over NPS scores while slowly building things nobody actually needed.

The pattern was always the same: founders run a PMF survey, get a number like 38%, and then... argue about what it means. Are we close? Should we pivot? Is 38% good for our stage?

The number on its own tells you nothing useful.

Here's what nobody talks about: a product at 38% overall might be at 65% with power users and 12% with casual signups. Those are two completely different problems requiring two completely different fixes. Averaging them together just creates noise.

And the tools that exist weren't built to help with this. PMFSurvey.com is free but hasn't been updated in years. Delighted was the closest thing to an affordable option — it's shutting down June 30. Everything else starts at $99–199/month and is designed for enterprise teams with procurement budgets. If you're an indie dev or early-stage founder, you're stuck cobbling together Typeform and spreadsheets.

So I built FitSignal.

It implements the full Rahul Vohra PMF Engine — the framework Superhuman used to go from 33% to 58% PMF in three quarters. Not just the survey. The complete system: survey your active users, segment by persona, analyze what people love and what's holding others back, then split your roadmap between doubling down on what works and fixing the blockers.

You set it up once. It runs on a schedule. You see your PMF score by user segment over time.

No 47-feature dashboard. No sales call. No annual contract. Starts free for up to 250 surveys/month, which is enough to get a real baseline for most early-stage products.

FitSignal is live now at fitsignal.com.

If you're measuring PMF manually, or you're one of the Delighted users figuring out what's next — give it a look. Happy to answer any questions here, and you can follow along as I build this in public @areedbuilds.