what is mau and dau 
monthly active users and daily active users are measurements used by companies that offer services or products for their customers to use each one reflects how many customers are using their services daily or monthly whether a user is active depends on the business definition the bottom linemonthly average users is a metric social media platforms websites and businesses use to measure engagement it is a useful metric for gauging the number of accounts using a service but it has become somewhat dated for some service providers especially as service centralization occurs throughout an industry meta makes a strong case for retiring this metric however while it is true that the variations in user metrics can make it difficult to compare social media companies it is still a useful metric for smaller service platforms and companies with websites that are looking for engagement measurements 