Product-Market Fit (PMF) is one of the most critical factors for any startup taking its first steps. A good PMF means that your business or brand has successfully identified the right target consumer to serve with the right product. The overwhelming majority of startups, apps, and ecommerce stores are either unaware of or have not yet achieved PMF. While there are many ways to measure PMF qualitatively or quantitatively, one of the better ways to bring in both types of data, in our experience, is to conduct user tests.