Monthly active users (MAU) is a key metric used to gauge the number of users who engage meaningfully with a product over a month, serving as a foundational measure for more advanced analyses such as conversion and retention rates. To effectively leverage MAU, companies must define what constitutes a meaningful user action, which can evolve as a product matures. Tools like Mixpanel allow flexibility in customizing these metrics to suit specific business needs, enabling the measurement of daily (DAU) and weekly active users (WAU) as well. The DAU/MAU ratio is a popular metric for assessing product stickiness, offering insights into how frequently users engage with a product. Beyond just counting users, analyzing active user data can illuminate areas for improvement in user retention, engagement, and conversion rates, thereby impacting revenue forecasting and product-led growth strategies. By segmenting users and tracking their engagement over time, businesses can better understand user behavior and optimize their products for sustained growth.