Acquisition-week comparison
Two or three intake weeks, side by side: same week-0 label, same holiday notes, and a verdict on whether they may be compared at all.
Readings
Cohort analytics sittings for app teams: full table readings, launch-week briefings, acquisition-week comparisons, and stakeholder narratives.
Bring a weekly returner table from the app you already ship. Each sitting below is a distinct length and purpose, not a ladder of the same hour.
Cohort table reading
Two hours with your printed or exported weekly cohort. We mark hollow weeks, argue the week 0 label, and write what the table can honestly say.
Launch-week returner briefing
For the noisy first weeks after a launch. We read who came back, who never had a second session, and which claims to postpone.
Stakeholder retention narrative
After the table has been read, we draft the few sentences a planning pack can stand behind, including the limits of the diagonal.