How do you measure product-market fit?

Hello @noyanidin I will say Growth and Profit once you detect the Retention is good enough in your product. If every month you see your user base growing and also your profit and retention keep stable, I will say you have a product-market fit. What do you think? Cheers,

It's an area that we struggle to teach at universities and entrepreneurship centres. Getting idea validation data is a more mature science now but very little work has been put into defining product-market fit and measuring it. It probably lies in the words: "Does your product have a large enough customer segment (market) that is buying and using it". But how do you measure this? You posted a good question. I'm enjoying the answers. Please keep them coming😀.

Retention rate, churn rate, organic growth rate (likes, recommendation, feedback)