Wallify is a Wallpaper Mobile Application developed using Flutter, compatible with both Android and iOS platforms. The app uses Firebase as the backend to manage and store data efficiently. Users can sign up and sign in to create their accounts and access personalized features. Once logged in, users can explore a variety of wallpaper categories that are dynamically fetched from Firebase. Each category contains high-quality wallpapers that users can view in full screen, download, and set as their phone’s lock screen, home screen, or both—directly from within the app. The app delivers a smooth and responsive UI with a focus on performance, offering users a rich and easy-to-navigate experience. It\'s a perfect showcase of integrating Flutter with Firebase to build a beautiful, real-world mobile application