What is DAU / MAU?
DAU stands for Daily Active Users and MAU stands for Monthly Active Users. DAU / MAU is the ratio between the two, and is an expression of how engaged users are with a product. A ratio of 1 means that all users come back every day, i.e. incredible engagement, whereas a ratio of 1/30 is as bad as it gets.
DAU/MAU is a metric used in the evaluation part of the product management process.