Churn rate calculator

Customers and MRR at the start of the month and what you lost: customer churn, revenue churn and how long a customer stays.

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Customers at the start Customers who left MRR at the start € MRR lost €

Customer churn –

Revenue churn –

Average customer stays –

Or let it count itself

Sumly works these out every day from your own payments, across every provider and project.

See it in the demo

Sumly opens to a few founders at a time. Leave your address and what you would connect; we write when your place is ready.

Or look around first: open the live demo.