DAU/MAU (Daily/Monthly Active Users)

DAU/MAU is a deceptively simple metric that reveals something fundamental about the quality of user engagement, not just its scale. A platform can boast hundreds of millions of monthly active users, but if most of them visit only once or twice a month, the business has a fragile attention relationship with its audience. DAU/MAU compresses the engagement question into a single ratio: what fraction of monthly users come back every day?

The calculation divides the number of users who engaged with the product on a given day by the number who engaged at least once during the surrounding month. A DAU/MAU ratio of 0.50 means the average monthly user visits roughly 15 days out of every 30 — a healthy level of daily habit. Ratios approaching or exceeding 0.65 are considered exceptional and suggest the product has become a near-daily routine for most of its users.

Meta has historically reported DAU/MAU ratios for Facebook in the range of 60% to 70%, which it uses to argue that Facebook is not merely a platform people check occasionally but one embedded in daily behavior. This high ratio supports the advertising model: brands pay for access to an audience that returns reliably and frequently, creating dense opportunities for ad impressions.

For gaming companies, DAU is often the primary operational metric because game revenue, whether through in-app purchases or advertising, is tightly linked to the number of people who open the app each day. A title with strong daily engagement metrics commands premium pricing from advertisers and sustains in-game purchase rates.

SaaS companies sometimes report analogous engagement ratios for their products, though the interpretation differs. A project management tool used intensively on every workday would expect a high DAU/MAU, while a tax-preparation platform used heavily in February and March and lightly the rest of the year would naturally show lower ratios — without that reflecting any weakness in the product.

Investors should pay attention to how companies define active. Some platforms count any session, however brief, while others require a meaningful interaction such as posting, purchasing, or completing a defined workflow. Changes in the definition of active across reporting periods can create artificial DAU/MAU trends that do not reflect genuine shifts in engagement.

Tracking DAU and MAU growth independently also matters. DAU growing faster than MAU signals improving stickiness. MAU growing faster than DAU may indicate the platform is attracting casual users who explore and then disengage, which can inflate headline monthly numbers without translating into durable business value.