Journal · 12 June 2026
Vanity metrics that still fool product boards
Every few months a founder sends Pipeline Nodecore a board pack whose first slide is a download count the size of a headline. The number is not false. It is merely unemployed. It does not have a job in the argument that follows, which is usually about retention, pricing, or whether a second platform should be staffed.
App Analytics inherited a consumer-internet habit of treating volume as virtue. In a United Kingdom utility, a council app, or a subscription that is meant to be quiet, volume is often the opposite of health. People who finish the job should open the product less. If your north star rises when the product fails, you have a vanity metric wearing a serious font.
Three that survive because they print well
Lifetime downloads. Stores do not uninstall people from the slide. A cumulative curve can only go up, which is why it is loved. It tells you nothing about the cohort that arrived last Tuesday.
Blended daily actives. Staff devices, QA farms, and a single household iPad can sit inside the same count as the customer you meant. Amelia’s civic team in Leeds discovered eighteen internal devices in a “new resident” cohort. The open rate was a costume.
The screenshot of the whole dashboard. A board cannot read fourteen widgets. The widget that is largest wins. In the Signal Room we print one chart at a time, partly to be theatrical, mostly to stop the eye from cheating.
A replacement that still fits on a slide
Name the cohort, the qualifying action, and the window. Then show one comparison: this intake versus the previous, or iOS versus Android if the events actually match. If you cannot say the limitation in the same breath — sampling, missing background events, a renamed paywall — the slide is still vanity, just better dressed.
Cohort Signal spends a week retiring pretty lines. We do not ban large numbers. We require them to be employed. If a download count is the only figure your investors recognise, put it in an appendix and stop letting it open the meeting.