By default, the Fire Stick does not come equipped with built-in AirPlay capabilities. As a result, to mirror your iPhone's screen to a Fire Stick, you'll need to rely on third-party applications designed specifically for this purpose.
Explore the App Store to find a wealth of screen mirroring apps available for download. Many of these applications are tailored to work seamlessly with various television models and platforms, including Fire TV and Fire Stick. Take your time to review the options and select a tool that suits your specific needs.
Among the more reliable recommendations is the app DoCast. This app operates efficiently with Fire Sticks, allowing users to not only mirror their screens but also stream photos and videos effortlessly.