Free Tools

Interactive calculators to help you make better subscription business decisions.

Growth Ceiling Calculator

Find the exact month your growth stalls — and how much ARR you're leaving on the table. Interactive scenario modeler with charts.

Minimum Detectable Effect calculator for planning A/B test sample sizes.

Calculate customer lifetime value from ARPU, margin, and churn rate.

Convert between monthly and annual churn rates, and see your retention.

How many months does it take to recover your customer acquisition cost?

Check if your unit economics are healthy for sustainable growth.

Get personalized guidance on improving your subscription metrics.