DAU (Daily Active Users)
The number of unique users who engage with your product on any given day.
Definition
Daily Active Users (DAU) counts the number of unique users who perform a meaningful action in your product during a 24-hour period. This is a key metric for measuring product engagement and user retention.
Why It Matters
- Engagement Health: Shows how sticky your product is
- Growth Tracking: Indicates product momentum and adoption
Real-World Example
Social Media App: 500,000 users open the app and interact with content today
DAU = 500,000