Retention windows that match how people actually return

A meditation app and a monthly bill-pay app should not share the same primary retention window. Yet many early teams copy a template that celebrates Day-7 return regardless of category.

Start from expected return cadence. If the natural habit is weekly, a seven-day window may understate healthy use. If value arrives monthly, Day-7 retention will look bleak even when the product works.

Separate “opened the app” from “completed a valued action.” Opening alone rarely explains whether the product delivered. Pair a return window with a retention action that mirrors activation logic at a later stage.

When leadership asks “are we retaining users?” answer with the window and the action in the same sentence. Ambiguity here is how metric debates turn into opinion contests.