The count of users who are genuinely engaging with a platform or product within a defined time window, not just registered or signed up. Because "active" can mean different things, the definition must be set clearly and applied consistently to be useful.
While the nonprofit's leadership celebrated having 10,000 registered users, Priya pointed out that their active users—people who had actually logged in and done something in the past 30 days, numbered closer to 400—telling a different story.
