Why Churn Matters When Calculating SaaS Growth
Every customer you lose takes their future revenue with them, plus what you spent to win them.
The Hidden Cost of Churn:
- A 15% monthly churn rate means you lose 86% of customers within 12 months
- You need 15 new customers just to replace the 15 you lost, before any growth happens
- Customer acquisition costs 5-25x more than keeping existing customers
- High churn signals product-market fit problems that get worse over time
Many users who cancel early never figured out your app. They signed up, could not find the main features, and left.
SaaS Growth Metrics Reality Check:
Sign-ups alone do not show growth. If 100 users sign up and 80 leave in the same month, you grew by 20.
Track retention by the month users signed up. It shows when users drop off.
Understanding Your Results
The calculator shows two lines. One keeps your current churn. The other uses the lower churn you set.
What the Numbers Mean:
- Current churn: Your users and revenue if churn stays where it is
- Lower churn: Your users and revenue if churn drops to the rate you set
- The difference: The revenue you keep by lowering churn
Red Flags in Your Results:
- Monthly recurring revenue growth stays flat despite new sign-ups
- User count barely increases even with solid acquisition
- Churn above 10% a month
Common Mistakes Founders Make:
They treat churn as normal and focus only on getting new customers. Keeping a customer usually costs less than finding a new one.
They build their own onboarding tools. That takes months, and customers keep leaving while it is built.
Taking Action on These Insights:
Compare the difference after 12 months with what you spend each month to run the business. That is what your current churn costs you.
Sunboard's AI support agent answers your users and guides them through the task, right inside your app.
Set up once, and there's nothing to maintain.