Daily active users is a weather report. It tells you whether the sky was busy. It does not tell you whether anyone found a ticket, finished a lesson, or came back because the product deserved it. Boards like it because it moves every morning. Product rooms should be suspicious of anything that busy.
In App Analytics, DAU also hides identity sins. A reinstall, a shared tablet, a background fetch that looks like a visit: all of them can puff the count. We have watched a United Kingdom retailer celebrate a Tuesday spike that was a retry storm after a certificate mistake.
A better compass is slower. Pick a job the app claims to do. Count the people who completed that job this week, then look at whether last week’s completers returned. That pair of numbers is uglier in a slide and kinder to the people who actually ship.
If you must keep DAU on a wall, caption it. Write the definition in the same type size as the number. Write who is excluded. Write what happened the last time it jumped. Uncaptioned DAU is interior decoration.
The Retention as Narrative salon spends four weeks on this substitution. Signal Architecture folds it into week five. Neither will make a vanity chart illegal; both will make it embarrassing.