Has account = a member who could sign in (one-off, only ever goes up). Used the app = logged something themselves in 30 days — the real engagement number. Checked in = physically came to the gym; a coach tapping them in on the kiosk counts, so this measures attendance, not app usage.

There is no login tracking — a coach counts as active by doing something (publishing a workout, messaging a member, logging an observation). A coach who only reads looks idle here, so these numbers undercount rather than overstate.