Technological advancements such as artificial intelligence, augmented reality (AR), and machine learning improve user interaction in mobile apps by enhancing personalization and usability. These technologies enable apps to learn user preferences, anticipate needs, and provide tailored experiences. For instance, AI can power chatbots for customer support, while AR can offer interactive elements that enrich user engagement. Such integrations lead to more intuitive interfaces and enhance accessibility, making mobile apps more appealing and functional for users.