What does a good retention curve look like?

A healthy retention curve drops steeply in the first few days/weeks then flattens into an asymptote. If the curve flattens above 20-30% for consumer products or above 50-60% for B2B SaaS at Month 6+, you likely have product-market fit. A curve that never flattens and keeps declining means users are not finding lasting value.

How do I use cohort analysis to improve my product?

Compare retention curves across cohorts to see if product changes improve retention. Segment cohorts by acquisition channel, user type, or activation status to find which groups retain best. Focus product improvements on moving the curve up in the first 7-14 days, where the steepest drop occurs.

Pitchkit

Back to Glossary

GLOSSARY

Cohort retention

Cohort retention tracks the percentage of users or customers from a specific signup cohort who remain active at successive time intervals (Day 7, Month 1, Month 3, Month 6, etc.). Unlike aggregate retention, cohort analysis reveals whether your product is improving over time by comparing how newer cohorts retain versus older ones. Flattening retention curves are a strong signal of product-market fit.

Usage

Measures product value over time by cohort. Plot curves, not just a single number.

Benchmarks

Aim for flattening retention curves by month 3–6; compare by ICP and channel.

Worked example

M3 retention 68%, M6 61%, M9 59% → curve flattening indicates durable value.

Common pitfalls

Mixing logo and revenue retention; not excluding inactive trials; seasonality misreads.

How to show in your deck

Traction slide: cohort curve chart with 6–12 cohorts; annotate first value moment.

Deck snippet

Cohorts flatten by M3–M6; M6 retention ~61%.

Formulas

Cohort retention (Dx/Mx)

(Active users from cohort at time T) / (Users in cohort at start)

Frequently asked questions

Related terms

NDR Churn

Looking for investors?

Browse 950+ European investors filtered by stage, sector, country, and check size.

Explore the investor directory

Activation rate Magic number