Hi Product Hunt 👋, I built LossLens because in sales, losing a deal can teach you more than winning one — but these lessons often stay hidden inside companies. LossLens is a public archive of anonymized closed-lost sales cases, packed with real reasons, deal context, and actionable insights. What’s unique? Instead of generic “lessons learned” articles, you’ll find structured, filterable cases from different industries, deal sizes, and stages. You can spot patterns, learn from others’ mistakes, and improve your own win rate — without paying the cost of failure yourself. I’m most proud that this is built by a sales person, for sales people. Every case added is a real, lived experience that can help someone else close their next deal. Would love to hear your feedback and even your own “lost deal” stories! 💬

LossLens

Learn from loss

Learn from loss