Free Engineering Workbench calculator — live below, no login
Product-market fit survey (40% test)
Check what share of users would be very disappointed without the product.
Product & growthHow it's worked out
- Share = very disappointed ÷ responses, with a Wilson 95% interval
- At least 40 responses; recent active users only
NoteAsk only people who used the product recently. Study what the very disappointed group values most.
Source: Ellis, product-market fit survey; Vohra (Superhuman PMF engine)
Need help acting on this number?
VVnT SeQuor's GenAI & Agentic AI Development practice helps teams turn this metric into a plan.