For example, a scheduling tool may find fit with clinics if staff routinely use it to fill appointments and renew their subscriptions. The relevant evidence is what customers do over time.
Fit can differ across customer groups and can change as competitors or needs change. Look for repeated use, willingness to pay and direct feedback about the problem the product solves.
ELI5
Product-market fit means that a product helps a particular group of people enough that they want to keep using it. Having many features alone does not establish that match.
For example, a booking tool may fit small classes if instructors keep using it because it makes scheduling easier. A brief burst of curiosity would provide weaker evidence.
Does early interest prove fit?
No. Trials and praise can help identify a promising need, but repeated use provides stronger evidence.
Can a company lose product-market fit?
Yes. Customer needs, competing products and the cost of using the product can change.
