# Kometrics > Revenue metrics for SaaS, at one flat price. Kometrics imports the whole billing history from Stripe, Paddle, Creem or Asaas and rebuilds it as a movement ledger: new business, expansion, contraction, churn and reactivation, one row per event. MRR, ARR, churn rates, LTV, cohorts and forecasts are computed from that ledger, so any figure can be traced back to the invoices behind it. $19/month, free under $1,000 MRR. Contact: support@kometrics.com ## Reading this site as markdown Every page below has a plain markdown twin. Append `.md` to any URL (https://kometrics.com/glossary/mrr.md), or request the page with `Accept: text/markdown`. A fuller dump of the highest-value pages is at https://kometrics.com/llms-full.txt. ## Product - [Kometrics](https://kometrics.com): Subscription analytics for SaaS: connect Stripe, Paddle, Creem or Asaas and get MRR, churn, LTV and cohorts computed from an auditable movement ledger. - [Pricing](https://kometrics.com/pricing): One plan at $19 a month, or $15 billed yearly. Free while every workspace stays under $1,000 MRR. ## Features - [Features](https://kometrics.com/features): Every report and tool in Kometrics, grouped by what it is for. - [Metrics](https://kometrics.com/features/metrics): Twelve subscription reports that agree with each other, down to the cent. - [Customers](https://kometrics.com/features/customers): The whole story behind any number, one customer at a time. - [Kometrics AI](https://kometrics.com/features/ai): Ask a question about your revenue and get the figure, not a guess. - [Forecast](https://kometrics.com/features/forecast): Where MRR lands if the last few months repeat, and what changes if they do not. - [Cohorts](https://kometrics.com/features/cohorts): How much of each signup month is still paying you. - [Maps](https://kometrics.com/features/maps): Which countries your revenue actually comes from. - [Goals](https://kometrics.com/features/goals): The number you are running at, against the number you need. - [Revenue Calendar](https://kometrics.com/features/calendar): When the money actually arrives, day by day. - [Risk Radar](https://kometrics.com/features/risk-radar): The MRR that is less settled than the chart makes it look. - [Mobile](https://kometrics.com/features/mobile): Your MRR on the home screen and the lock screen of your phone. - [Integrations](https://kometrics.com/features/integrations): Stripe, Paddle, Creem and Asaas, merged into one ledger. ## Tools - [Free SaaS metrics tools](https://kometrics.com/tools): Browser-only calculators for churn, LTV, MRR and NRR. No signup, nothing sent to a server. - [Churn Rate Calculator](https://kometrics.com/tools/churn-rate-calculator): Monthly and annualized customer churn from two numbers. - [LTV Calculator](https://kometrics.com/tools/ltv-calculator): ARPA, margin and churn in; lifetime value out. - [MRR Calculator](https://kometrics.com/tools/mrr-calculator): Plans and customer counts in; MRR, ARR and a 12-month projection out. - [NRR Calculator](https://kometrics.com/tools/nrr-calculator): One period of movements in; NRR and GRR out, with the gap explained. ## Glossary - [SaaS metrics glossary](https://kometrics.com/glossary): Twelve subscription metrics defined properly, each with the formula, a worked example and the usual mistakes. - [Monthly Recurring Revenue (MRR)](https://kometrics.com/glossary/mrr): MRR is the normalized monthly value of every active subscription you have right now. It is a run rate, not a cash figure: it answers what a month of your current book is worth... - [Annual Recurring Revenue (ARR)](https://kometrics.com/glossary/arr): ARR is the annualized value of your recurring revenue, almost always computed as MRR times 12... - [Churn Rate](https://kometrics.com/glossary/churn-rate): Churn rate is the share of your customers, or of your revenue, that you lost during a period. Which of the two you mean changes the number substantially... - [Net Revenue Retention (NRR)](https://kometrics.com/glossary/net-revenue-retention): Net revenue retention is what happened to the revenue you already had. Take a cohort of existing customers, add the expansion they bought... - [Gross Revenue Retention (GRR)](https://kometrics.com/glossary/gross-revenue-retention): Gross revenue retention is the share of existing revenue you held onto, counting only the losses. Downgrades and cancellations count against you; expansion earns no credit... - [Cohort Retention](https://kometrics.com/glossary/cohort-retention): Cohort retention groups customers by the month they started paying and follows each group forward, so you can see how long customers stay and how their spend develops... - [Customer Lifetime Value (LTV)](https://kometrics.com/glossary/ltv): Customer lifetime value estimates how much revenue a single customer produces across their whole relationship with you... - [Average Revenue Per Account (ARPA)](https://kometrics.com/glossary/arpa): ARPA is your recurring revenue divided by the number of paying accounts: what the average customer is worth per month. It is also called ARPU or ARPC, with account... - [Expansion MRR](https://kometrics.com/glossary/expansion-mrr): Expansion MRR is the additional recurring revenue you earn from customers you already have. Upgrades to a higher plan, extra seats... - [Contraction MRR](https://kometrics.com/glossary/contraction-mrr): Contraction MRR is recurring revenue lost from customers who stayed: downgrades, removed seats, dropped add-ons and expired discounts running the other way... - [Net MRR Movement](https://kometrics.com/glossary/net-mrr-movement): Net MRR movement is the total change in MRR over a period once every movement is added up: new business, expansion and reactivation on one side... - [Dunning](https://kometrics.com/glossary/dunning): Dunning is the process of recovering a failed subscription payment: the retry schedule, the emails asking the customer to update their card... ## Comparisons - [Compare Kometrics](https://kometrics.com/compare): Kometrics against ChartMogul, Baremetrics and ProfitWell, including what each costs as you grow. - [Kometrics vs ChartMogul](https://kometrics.com/vs/chartmogul): How Kometrics and ChartMogul differ on pricing, data model and what you can get out. - [Kometrics vs Baremetrics](https://kometrics.com/vs/baremetrics): How Kometrics and Baremetrics differ on pricing, data model and what you can get out. - [Kometrics vs ProfitWell Metrics](https://kometrics.com/vs/profitwell): How Kometrics and ProfitWell Metrics differ on pricing, data model and what you can get out. - [ChartMogul alternatives](https://kometrics.com/alternatives/chartmogul-alternatives): Six honest options if ChartMogul is not the right fit, including staying on it. ## Docs - [Getting started](https://kometrics.com/docs): Authenticate, make your first call, and learn the four conventions the whole API follows. - [Errors](https://kometrics.com/docs/errors): What failures look like, and what each status code means. - [Account](https://kometrics.com/docs/account): The workspace behind the key: its name, currency, timezone and week start. - [Metrics](https://kometrics.com/docs/metrics): MRR, ARR, ARPA, customer counts and the churn rates, as a series over any interval. - [Customers](https://kometrics.com/docs/customers): Search the book, read one customer, and pull their movement and invoice history. - [Activities](https://kometrics.com/docs/activities): Every MRR movement across the book: new business, expansion, contraction, churn and reactivation. - [Changelog](https://kometrics.com/docs/changelog): Breaking changes, new endpoints and new fields, newest first. ## Blog - [Blog](https://kometrics.com/blog): Guides on subscription metrics and how to read them. - [What is MRR? Monthly Recurring Revenue, explained properly](https://kometrics.com/blog/what-is-mrr): A structure example article: what Monthly Recurring Revenue is, how it is calculated, what moves it, and the mistakes that make dashboards lie. ## Legal - [Privacy policy](https://kometrics.com/privacy): What Kometrics stores, why, and the privacy mode that keeps customer identities out of it. - [Terms of service](https://kometrics.com/terms): The terms the service is offered under.