DAU
Daily Active Users
Total number of unique users active in a 24-hour day, averaged over a given period of time. [1]
Primary
[1] Nine Business Models and the Metrics Investors Want (SUS 2019): KPI, Early Stage, Business Models | Y Combinator. Retrieved May 21, 2021, from https://www.ycombinator.com/library/8E-nine-business-models-and-the-metrics-investors-want-sus-2019