MAU, or Monthly Active Users, refers to the number of unique individuals who engage with a particular platform or service within a given month. This metric is commonly used in the digital world to measure the success and growth of online communities, social media platforms, and mobile applications. MAU provides valuable insights into the level of user engagement and retention, as well as the overall popularity and reach of a product or service. It is a key performance indicator for businesses and organizations, as it reflects the loyalty and satisfaction of their audience. In short, MAU is a crucial metric for understanding and evaluating the impact and success of a digital platform or service.