Apple's iOS 18.4 update enhances user interaction and device efficiency with smarter tools and customization options.Visual Intelligence feature is more efficient, with a shortcut in Control Center for instant activation and improved tasks like scanning documents.Revamped ambient music controls allow assigning specific playlists to various settings, enhancing the listening experience.Manual notification prioritization feature lets users decide which apps get immediate attention, aiding productivity.iOS 18.4 introduces new emojis and simplifies emoji customization for more expressive communication.Apple News Plus now includes a food and recipe section, integrated timers, and reader mode for uninterrupted cooking experience.New widgets for Podcasts app offer quick access to favorite content, enhancing user experience.Introduction of the Apple Vision Pro app provides a centralized hub for managing Vision Pro content.Photos app in iOS 18.4 includes advanced filters for easier organization of images.Users can now set third-party apps as default translation tools for enhanced communication capabilities.