Validation

How to Use Preselling to Validate a Technology Product (Complete Guide)

“It’s not that the customer may not have the problem, it’s just, they may not want the solution you’re selling.” – Dan Martell, Serial Entrepreneur Although you can use landing pages to presell smaller dollar-value products, it’s highly recommended to do preselling face-to-face, or over

How to Evaluate Product/Market Fit by Analyzing Retention Cohorts

Plot the % active over time (for various retention cohorts) to create your retention curve. IF it flattens off at some point, you have probably found product/market fit (PMF) for some market or audience. – Brian Balfour, Reforge Founder & CEO Several years ago, Facebook

The 8 Best Books on Product Market Fit for Startups in 2025

What Is Product-Market Fit (And Why Is It Important?) Wealthfront co-founder Andy Rachleff and investor Don Valentine were the first to define and coin the term product-market fit (aka product/market fit or PMF). Later, Marc Andreessen, partner at Andreessen Horowitz, helped popularize the concept. To

Do You Have Product-Market Fit? Here’s How to Tell…

The life of any startup can be divided into two parts – before product/market fit and after product/market fit. – Marc Andreessen, Product Market Fit Promoter and Serial Entrepreneur You were able to make some sales, get a few case studies and learn about the

How to Generate Valuable Insights From a Solution Interview

It’s show time — time to start the solution interview phase and show what your team has been working on. Before showing your minimum viable product (MVP), it’s a good idea to ask, “What would be wonderful?” and listen carefully to the prospect’s wording. This