Cohort Analysis Builder
Enter one signup period and one active period per user to build a transparent retention table.
A QUICK WALKTHROUGH
How to use this tool
- Enter rows as user, signup period, active periods.
- Choose the period delimiter and build the table.
- Inspect cohort counts and retention percentages.
Explicit cohort boundaries
Retention is active users in a cohort during a period divided by that cohort’s signup users. Blank or malformed rows are excluded; period labels are supplied by you, and the tool does not infer temporal order.
GOOD TO KNOW
Common questions
Does it infer activity from events?
No. You provide one row per user and their active periods.
Are my users uploaded?
No. The calculation runs locally.