Product-market fit is a phrase used to describe the point at which there is *broad* market acceptance for a new application. In recent years many startups have embraced the lean startup methodology as espoused by the likes of Eric Ries and Steve Blank. They argue that startups need to behave differently compared to how real companies do. Startups need to validate the assumptions they are making, and to do so they need to build a minimal viable product and to ‘get out of the building’ to meet prospects and to learn whether or not there is a demand for your fledgling application.