If you want to use your iOS device to cast to Amazon Fire TV, you can use the free Apple TV app to do so. However, this method requires that you have an Android device in order to play the video. If you have an iPhone or an iPad, you can use the Android app to cast to the Fire TV. Once the device is connected to your Apple TV, you can then cast to the FireTV. Then, you can use the same method for your Mac and Windows PC.

First, you need to have an iOS device. Download the app on your iPhone or iPad and connect it to your Fire TV. You can also use the same method for an Android device. Simply turn on Wi-Fi and Bluetooth on the mobile device and open the Apple TV app. Then, select the Amazon Fire TV Stick from the list. If you are using a Samsung or an AOSP-based ROM, you should install the Cast application. The name of the app will vary, but it is the same process.

To use the Apple TV app, go to Settings > General and then tap on Display Mirroring. On the Apple TV, tap on the AirPlay icon and choose your Apple TV. Then, select your Fire TV as the destination device. You can then select a video or song from the phone and start playing it on the FireTV. The video or song should now appear on the FireTV. Once you have set up the AppleTV app, you can choose the movie or show you want to play through your Apple TV.