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Hello there. Thank you for sharing your inquiry with us. We understand your question about using your iPhone with casting and the difference between Chromecast and Google Cast for your 55UA7700PUB TV. To directly answer your questions: Casting with iPhone: Your LG 55UA7700PUB TV supports Apple AirPlay 2, which is the primary and easiest way to share content from an iPhone or other Apple devices to your TV. Since your TV also has Google Cast built-in, you can use this feature to cast from most Cast-enabled apps on your iPhone (like Netflix, YouTube, or Spotify) by tapping the Cast icon within the app. Chromecast vs. Google Cast: Google Cast is the name of the software protocol (the technology) that enables one device (like your phone) to send content to a receiver device (like your LG TV). Chromecast is the name of the physical streaming hardware device (the dongle) made by Google. Since your TV has Google Cast built-in, it means the TV can act as the receiver without needing to plug in the separate Chromecast hardware dongle. https://www.bestbuy.com/product/lg-55-class-ua77-series-led-ai-4k-uhd-smart-webos-tv-2025/JJ8VPZT6FH If you have any further questions about its features or need a step-by-step guide on how to use AirPlay 2, please send us a private message on Social Media @LGUSSupport, and our team will be more than happy to assist you. —Renzo
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