Analytics practice · 12 August 2026
How to read a retention curve without fooling yourself
The shape matters more than the headline number. Learn what a flattening curve, delayed drop, and cohort gap can tell you.
A useful retention curve begins with a precise return behaviour. A login, purchase, completed workflow and active subscription tell different stories. Compare cohorts only after the event and observation window are stable. Then look at the curve’s shape: the early slope points to activation friction, while the eventual floor suggests whether a durable habit or recurring need exists.