Daily active users
Daily active users is the number of distinct users who actively interact with a system during a specified calendar day.
Automating API Delivery
Daily active users is the number of unique users who make at least one API call in a production environment during a day.
- How it is used
- Tracks the transition from API evaluation to production use and helps assess progress toward user-growth goals.
- How deep it goes
- Defines the count and its organizational variations, then shows report criteria and a time-series chart; it does not establish a universal activity threshold.
- Examples
- Uses Product Catalog API growth tracking, Moesif criteria for an /api base path, and a DAU time-series chart.
- What you can do after
- Apply it via Moesif to chart daily production users against a defined API growth goal.
Read how Automating API Delivery explains daily active users →
Experimentation for Engineers
Daily active users is the number of distinct users who engage with a product during a given day.
- How it is used
- Uses DAU to assess product traction, guide experiments, and monitor user effects while optimizing other business objectives.
- How deep it goes
- Defines DAU and applies it in product scenarios, but stops short of specifying instrumentation, aggregation, or statistical calculation procedures.
- Examples
- Uses short-video ranking experiments and advertising systems to show DAU gains, trade-offs, and potential long-term user loss.
- What you can do after
- Evaluate product changes with DAU while checking model quality, business goals, revenue effects, and user-experience risks.
Read how Experimentation for Engineers explains daily active users →
Related concepts
- cross entropy losscontrasts with · Cross-entropy loss measures the expected negative log probability that a predicted distribution assigns to outcomes drawn from a target distribution.
- metrickind of · A metric is a quantitative measure used to characterize or assess a property, condition, behavior, performance, or outcome.
- study designmeasured by · Study design is the planned arrangement of procedures, conditions, measurements, and comparisons used to investigate a question and support valid conclusions.
- conversionmeasured by · Conversion is the proportion of eligible users, entities, or opportunities that complete a specified desired action or transition.
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