The way we interact with mobile apps is evolving rapidly. Gone are the days when tapping and swiping were the only ways to navigate a smartphone. Today, voice and gesture-based interactions are reshaping mobile experiences, making them more intuitive, inclusive, and efficient. The rise of AI-powered voice assistants, augmented reality (AR), and machine learning-driven gestures is creating what some call the "Invisible UI"—an interface that eliminates the need for visible buttons, menus, ...