In-app messages can be an effective tool for boosting user engagement, as they allow app developers and marketers to communicate directly with users within the app itself. Here are a few ways in which in-app messages can be used to increase user engagement:

1. Promote new features or updates: In-app messages can be used to alert users about new features or updates to the app, encouraging them to try out the new functionality.
2. Offer incentives or rewards: In-app messages can be used to offer users incentives or rewards for using the app, such as discounts, special deals, or exclusive content.
3. Personalize the user experience: In-app messages can be targeted to specific users or segments, allowing app developers to personalize the user experience and offer personalized recommendations or content.
4. Encourage user feedback: In-app messages can be used to solicit user feedback, allowing app developers to gather insights and improve the app based on user feedback.
5. Provide support and assistance: In-app messages can be used to provide users with support and assistance, such as answering frequently asked questions or offering troubleshooting tips.

By using in-app messages to communicate with users and provide value, app developers and marketers can increase user engagement and retention.