ChurnDog

ChurnDog is a payment recovery and churn reduction tool designed specifically for SaaS businesses. It helps teams automatically recover failed payments, reduce involuntary churn, and proactively retain customers - all with minimal setup and zero engineering overhead. The idea came from a pain we were facing ourselves at HeySummit. We were losing revenue to failed payments and had no simple, affordable way to automate dunning or understand why customers were churning. Most existing tools were expensive, clunky, or built for larger teams. So I decided to build ChurnDog as a weekend side project - something lightweight, powerful, and designed for real SaaS operators like us. Under the hood, ChurnDog is built with Next.js, Tailwind, and PostgreSQL for core app functionality. We’re using Tinybird to stream and react to subscription, payment, and engagement events in real-time - powering our automated workflows and recovery timelines. It’s simple, smart, and built to grow with SaaS teams at any stage.