I Shipped a SaaS MVP With Three Emails. Then I Watched It Die.

I just shipped a SaaS MVP last month. Auth worked. Payments worked. The product did the thing it was supposed to do. I opened the dashboard on a Monday morning, coffee in hand, ready to watch the trials convert. Three weeks later my trial-to-paid was sitting at 8%. Users were signing up, clicking around for a day, and vanishing. Nobody was churning loudly. They were just leaving. Quietly. Like the app was a restaurant they walked into, looked at the menu, and walked out of without ordering. I lo