Business
Invoice Generator
Create a clean invoice with items, tax and discount, then print or save as PDF.
Business
SaaS MRR, Churn & Retention Calculator
MRR, ARR, churn, net revenue retention, LTV and CAC payback for a month.
Good to know
Frequently asked questions
How do I use it?
Fill in the options and press “Calculate”. Check the result, then copy or download it.
How does it work?
Uses standard definitions: churn = lost ÷ starting customers; NRR = (start − churn − contraction + expansion) ÷ start; LTV = ARPU × margin ÷ churn.
Is my data uploaded?
No. Everything is processed in your browser and nothing is sent to a server. No account is needed.
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