Apps with strong user engagement and sizable user bases may have lucrative advertising and sponsorship opportunities. To prevent offending users with invasive or pointless advertisements, ittypes of expansion slots is imperative to find a balance between monetization and user experience. Finding the Correct Balance. In the end, the most effective app monetization approach is one that fits in with the app's long-term objectives, user base, and value proposition. Developers can create a devoted clientele and recurrent revenue stream by offering users worthwhile and interesting experiences.