Definition

Churn is a term used to describe the rate at which customers are leaving a product or service. In other words, it's the number of customers who stop using your product or service over a period of time. It's one of the most important metrics for SaaS companies, because it shows how quickly you're losing customers and whether or not you're retaining them. In the context of subscription businesses, it's also referred to as "cancellations" or "attrition". It's a metric that's closely watched by CEOs and investors alike, because it directly impacts a company's revenue