** To boost user engagement by 100 times, we will need a comprehensive strategy that incorporates multiple tactics. First, it is essential to enhance the app's UI and UX. The application must be user-friendly, easy to navigate, and visually appealing. If the app is confusing or challenging to use, it will deter users from engaging. Second, personalization will play a crucial role in this initiative. By analyzing user behavior and preferences, we can customize their experiences, presenting them with content that is likely to resonate. This way, interaction with the app becomes a tailored experience rather than just another generic platform. Third, effectively utilizing push notifications can significantly enhance user engagement. By delivering timely and relevant notifications, we can encourage users to interact with the app more frequently. However, it is important to ensure that these notifications are not excessive, as that could lead to negative outcomes. Fourth, keeping the app updated is vital for maintaining its relevance and freshness. This may involve periodically refining the UI and UX, introducing new features, or addressing bugs. Regular updates signal to users that the app is actively maintained and improved. **