Keywords · Product · Retention · Updated 2026-07-21

What is Weekly Active Users (WAU)?

Short answer: The count of unique users who take a meaningful action in a product within a rolling seven-day window.

Definition

The count of unique users who take a meaningful action in a product within a rolling seven-day window.

Why it matters for growth

WAU is a better fit than DAU for products with a natural weekly usage rhythm, like B2B tools used on weekdays.

Example

A project management tool reports WAU instead of DAU because most teams only log in on business days.

FAQ

What is Weekly Active Users (WAU)?
The count of unique users who take a meaningful action in a product within a rolling seven-day window.
Why does Weekly Active Users (WAU) matter for growth?
WAU is a better fit than DAU for products with a natural weekly usage rhythm, like B2B tools used on weekdays.
What is an example of Weekly Active Users (WAU)?
A project management tool reports WAU instead of DAU because most teams only log in on business days.
What is Weekly Active Users (WAU)? Definition and growth use · Cofounderbase