CAC and payback calculator

What one paying customer cost you, how many months they take to earn it back, and how their lifetime value compares.

Marketing spend, ads and creators € New paying customers They pay a month € Store or payment fees % Monthly churn %

CAC, cost per paying customer –

Earned back in –

Lifetime value to CAC –

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.