Bruno Virlet, co-founder of Genius Scan, shares his journey from dorm-room project to a thriving app with 5 million monthly active users. He discusses the importance of prioritizing customer experience over metrics and how that builds trust and loyalty. Bruno reveals how a surprising server crash turned into a valuable A/B test, helping to boost conversions. He emphasizes that even in a saturated market, there are untapped opportunities for innovation, especially when developers focus on solving specific user problems.