Methodology
Built on the math that finds permanence. And the benchmark that proves it.
ChurnRX adapts academic-grade statistical methods, applied to the largest detailed retention dataset in B2B SaaS, and surfaced through continuous AI analysis. The result is a number you can act on — and the strategic moves to act on it with.
The foundation
Survival analysis, applied to retention.
Survival analysis is the established statistical method for answering how long things last. It’s the math behind clinical outcomes research, equipment reliability, and population longevity studies. ChurnRX adapts it to the only question that matters about a customer base: how long do customers stay, and what fraction will never leave?
Traditional retention metrics — annual retention rate, churn rate, NRR — collapse the whole story into a single number. The shape underneath gets lost. Survival analysis preserves the shape, and the shape is where the answer lives.
The insight
A floor exists. Find it.
A survival curve that drops to zero says no permanence exists. A curve that flattens at a non-zero floor says a real, bonded fraction has formed. The level of the floor is the answer.
That permanently bonded fraction — the customers your product has won unconditionally — is what ChurnRX calls your PMF Score. It is the cleanest possible measure of product-market fit derived directly from observed behavior.
It is a structural fact about your current customer base. It changes as the business changes — and tracking how it changes is how you tell whether you’re winning.
The trend
Cohort analysis, because averages lie.
A single aggregate retention rate flattens cohorts together — old and new, healthy and weak — into one number that can rise while the business deteriorates. Cohort analysis is the cure.
ChurnRX computes a survival curve and PMF Score for every cohort you have data on. Whether the newest cohorts bond more than the older ones is the leading indicator that everything else hides.
The benchmark
Find out how you compare.
A PMF Score in isolation is interesting. A PMF Score against the right comparison set is actionable. ChurnRX sits on the world’s largest detailed retention dataset — millions of real customers, observed over years. Every analysis the product produces is anchored to that benchmark.
Your retention measured against the part of the benchmark that actually resembles you — sector, stage, plan type, customer profile. Not a generic industry average.
The best-in-class PMF Score among companies structurally like yours. The realistic target — not a number some industry report invented.
The benchmark records what worked for similar companies and what didn’t. ChurnRX surfaces the moves with the strongest empirical evidence behind them.
The intelligence
Continuous AI on top of the benchmark.
The benchmark grows. AI runs on it continuously, finding new patterns across companies, segments, and time — and surfacing them as actionable insights inside every customer’s dashboard. The product doesn’t just measure your retention. It tells you what to do about it, with the empirical confidence that only a benchmark this size can underwrite.
Why this matters
Other tools measure churn. ChurnRX explains it.
The aggregate retention dashboards every B2B SaaS company already has tell you what happened. ChurnRX tells you why, what your structural ceiling actually is, where you compare in the market, and what to do about the gap. None of that is possible without the math, the benchmark, and the AI working together. That combination is the moat.
Find out who your product is really for. In two minutes.
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