Tech companies measure user engagement using various metrics, such as session duration, interaction frequency, and conversion rates. Analytics tools track how often users visit the platform, the time spent on specific features, and their behaviors, providing insights into user preferences and interests. Companies often leverage A/B testing and user feedback to enhance feature offerings, aiming to improve engagement. High user engagement typically correlates with increased customer satisfaction and retention, making it a key focus area for tech firms striving for growth and success in the competitive digital landscape.