FilmVerse is a premium cross-platform streaming application designed for movie lovers who expect fast discovery, high-quality playback, and a polished ad-free experience across iOS, Android, and web. Our team developed a responsive architecture with fast screen loading, smooth navigation, an integrated video player for trailer previews, playback controls, volume adjustment, and quality selection. Users can explore films by cast, director, or genre, create personal watchlists, and manage viewing history and preferences from a dedicated profile. We also implemented flexible subscription plans with transparent benefits and instant activation, creating a complete monetization flow for the platform. The backend was built with C#, .NET Core, REST API, EF Core, and PostgreSQL, while the mobile frontend uses React Native, Expo, TypeScript, and Redux Toolkit. Docker and Git support reliable delivery and deployment.