Product & Analytics / Growth
Cohort Retention Curve
A picture of how each group of users, grouped by when they joined, keeps coming back over time.
The fork, why two teams get different numbers
The COHORT-DEFINITION fork: an ACQUISITION cohort groups users by first- seen/signup date (the default, answers "does the product keep people"), while a BEHAVIORAL cohort groups by an action taken (e.g.
In the Metric Library
- The full fork, both definitions worked all the way through
- The trap that makes the number lie, on a real export
- Every formula variant, spelled out
- The reconciliation anchor, what to tie it to and when to refuse
Reference: Product-analytics convention (no governing body)