Churn refers to the percentage of users who sign up for your service but then stop using it.
Churn refers to the percentage of users who sign up for your service but then stop using it. This is an especially critical metrics for SaaS companies in growth mode because churn is the archenemy of exponential growth. If you are losing a significant portion of your customers, you simply won’t be able to achieve the critical mass of users you need to start making serious revenue.