User Interviews for Indie Developers: 5 People Reveal the Real Problem The best way to avoid "built it, no one uses it" is user interviews. 5 people is enough to see patterns. Here's the method I use. Why Interviews, Not Surveys Surveys (wrong): "Is this useful? → Yes/No" teaches you nothing Interviews (right): observing behavior reveals the real problem Users can't accurately say what they want. But they can describe when they struggle. Interviews are behavioral observation, not opinion collect