Casting from iPhone to Chromecast requires the Google Home app and a compatible casting app

Google Chromecast does not work directly with Apple's AirPlay system, so you cannot cast from iPhone the way you would to an Apple TV. Instead, you use the Google Home app to set up your Chromecast, then use individual apps — like YouTube, Netflix, Spotify, or Google Photos — that have built-in casting buttons. The app sends the video or audio to your Chromecast over your home WiFi network, and your iPhone controls playback from your hand.

The process is straightforward once the Chromecast is set up and connected to the same WiFi network as your iPhone. Most popular streaming apps already include a cast button; you tap it, select your Chromecast device, and the content plays on your TV while you keep your phone in your pocket or use it for other things.

Key Takeaways

  • You need the Google Home app installed on your iPhone to set up Chromecast and manage your devices.
  • Your iPhone and Chromecast must be connected to the same WiFi network for casting to work.
  • Casting happens through individual apps like YouTube, Netflix, and Spotify — not through a single iPhone casting menu.
  • Once you tap the cast button in an app and select your Chromecast, your iPhone acts as a remote control.
  • Some apps support screen mirroring, which shows everything on your iPhone screen on your TV, though this drains your battery faster.

Setting up Chromecast on your iPhone with Google Home

read the Google Home app from the App Store if you do not already have it. Open the app and tap the plus icon in the top left corner, then select "Set up device" and choose "Set up a new device." The app will walk you through connecting your Chromecast to your WiFi network — you will need your WiFi password.

During setup, the app asks you to name your Chromecast (for example, "Living Room TV" or "Bedroom"), assign it to a room, and confirm your WiFi network. Once setup is complete, your Chromecast appears in the Google Home app and is ready to receive casts from any app on your iPhone that supports it.

Keep your Chromecast plugged into power and within range of your WiFi router. If your iPhone and Chromecast are on different WiFi networks, casting will not work — they must be on the same network.

Casting video and audio from popular apps

Open any app that supports casting — YouTube, Netflix, Disney+, Hulu, Spotify, Google Photos, Pandora, and many others all have cast buttons built in. Look for a rectangular icon with a WiFi symbol in the corner (usually in the top right or bottom right of the screen). Tap it.

A menu appears showing available Chromecast devices on your network. Select the Chromecast you want to use. The content when ready starts playing on your TV, and your iPhone shows playback controls — pause, play, volume, and a progress bar. You can lock your phone, switch to another app, or set it down; the cast continues until you stop it or the content ends.

If the cast button does not appear in an app you use, that app does not support Chromecast casting. Check the app's settings or help section to confirm, or look for an alternative app that does support it.

Using screen mirroring to cast anything on your iPhone

If an app does not have a cast button, you can use screen mirroring to send everything on your iPhone screen to your TV. Open the Google Home app, tap the device you want to mirror to, then tap the three dots in the top right and select "Cast my screen." Your entire iPhone display appears on your TV.

Screen mirroring works for any app, website, or content on your phone, but it drains your battery much faster than regular casting and can cause lag or stuttering depending on your WiFi signal. Use it only when the app you want does not have a native cast button. To stop mirroring, tap the cast icon again and select "Stop casting."

Troubleshooting casting problems

If the cast button does not appear or casting fails, first check that your iPhone and Chromecast are on the same WiFi network. Open your iPhone's WiFi settings and confirm the network name. Then open the Google Home app and check that your Chromecast is listed and shows "Connected."

If your Chromecast shows "Offline" or does not appear in the app, restart it by unplugging it for 10 seconds and plugging it back in. Wait a minute for it to reconnect to WiFi, then try again. If it still does not appear, check that your WiFi router is working and that your Chromecast is within range.

If casting starts but stops after a few seconds, your WiFi signal may be weak. Move your Chromecast closer to your router or move your router closer to your TV. Restart your router by unplugging it for 30 seconds. If the problem persists, restart the app you are casting from and try again.

Controlling playback and stopping a cast

Once content is casting, your iPhone becomes a remote. The cast icon in the app shows playback controls — pause, play, skip forward or backward, and volume. Tap any of these to control what is playing on your TV. You can also adjust volume using your iPhone's physical volume buttons.

To stop casting, tap the cast icon again and select "Stop casting," or straightforward close the app. The content stops on your TV, and your Chromecast returns to its home screen. Your iPhone does not need to stay unlocked or in the app for the cast to continue — you can lock your phone or switch to another app and the cast keeps playing.

Apps that work with Chromecast from iPhone

Most major streaming services support casting from iPhone. YouTube, YouTube Music, Netflix, Disney+, Hulu, HBO Max, Amazon Prime Video, Peacock, Apple TV+, Spotify, Pandora, Tidal, Google Photos, Google Drive, and Plex all have cast buttons. Many smaller apps and services do too — check the app's settings or help section to see if casting is supported.

If you use an app that does not support casting, screen mirroring is your fallback, though it is less efficient. Some apps block screen mirroring for copyright reasons, in which case you cannot cast that content to a Chromecast from your iPhone at all.

Frequently Asked Questions

Can I cast from iPhone to Chromecast without WiFi?

No. Both your iPhone and Chromecast must be connected to the same WiFi network. Chromecast does not work over Bluetooth or cellular data. If your WiFi is down, casting will not work until your network is back online.

Why does the cast button not show up in my app?

The app may not support Chromecast, or you may need to update it. Check the App Store to see if an update is available. If the app still does not have a cast button after updating, it does not support Chromecast — try screen mirroring instead, or use a different app that does support it.

Can I cast from multiple iPhones to the same Chromecast at the same time?

Only one device can cast to a Chromecast at a time. If someone else tries to cast while you are already casting, their cast will take over and interrupt yours. You can hand off control by stopping your cast and letting them start theirs.

Does casting use a lot of data?

Casting uses WiFi data, not cellular data. The amount depends on the quality of the video or audio — streaming 4K video uses more data than streaming music. If you have a data cap on your home WiFi, casting counts toward it, but it is no different from watching the same content on your iPhone.

What should I do if my Chromecast keeps disconnecting?

Move your Chromecast closer to your WiFi router, or move your router closer to your TV. Restart your router by unplugging it for 30 seconds. If disconnections continue, restart your Chromecast the same way. Weak WiFi signal is the most common cause of drops.