iPhone and Chromecast work together through Google Home, not direct pairing
Your iPhone does not pair with Chromecast the way it pairs with Bluetooth speakers. Instead, you cast content to Chromecast using the Google Home app or built-in casting features in apps like YouTube, Netflix, and Spotify. The iPhone and Chromecast must be on the same Wi-Fi network, and you control playback from your phone while the video or audio plays on your TV or speaker.
The process takes about 30 seconds once your Chromecast is set up. You do not need to enter a PIN or go through a pairing menu — you straightforward tap a cast icon in an app, select your Chromecast device, and the content moves to your TV.
Key Takeaways
- Your iPhone and Chromecast must both connect to the same Wi-Fi network before you can cast anything.
- Most streaming apps (YouTube, Netflix, Disney+, Spotify) have a built-in cast button — look for a rectangle with a Wi-Fi symbol in the corner.
- If an app does not have a cast button, use the Google Home app to mirror your entire iPhone screen to the TV.
- Casting stops if you disconnect from Wi-Fi or leave the app, but you can cast again at any time without re-pairing.
Check your Wi-Fi network before you start
Open Settings on your iPhone, tap Wi-Fi, and note which network you are connected to. Then check your Chromecast: open the Google Home app on any device, tap the Chromecast device, tap Settings (the gear icon), and look at "Wi-Fi network" to confirm it is the same one. If they are on different networks, your iPhone will not see the Chromecast.
If your Chromecast is on a different network, tap the network name in the Google Home app settings, enter your Wi-Fi password, and wait for the device to reconnect. This usually takes 30 seconds to a minute.
Cast from apps that have a built-in cast button
Open YouTube, Netflix, Disney+, Spotify, or another streaming app on your iPhone. Start playing a video or song. Look for a cast icon — it looks like a rectangle with a curved Wi-Fi symbol in the bottom-right corner. Tap it.
A menu appears showing all Chromecast devices on your network. Tap the name of the Chromecast you want to use. The content moves to your TV or speaker within a few seconds. Your iPhone screen returns to the app, and you can use your phone to pause, skip, or adjust volume — the playback controls stay on your phone even though the content plays on your TV.
To stop casting, tap the cast icon again and select "Stop casting" or straightforward close the app.
Mirror your entire iPhone screen using Google Home
If an app does not have a cast button, you can mirror your whole screen. Open the Google Home app on your iPhone, tap the Chromecast device you want to use, tap the Settings gear icon, scroll down, and tap "Cast my screen." Your iPhone asks for permission — tap "Start" to begin mirroring.
Your entire iPhone screen now appears on your TV. Everything you do on your phone — opening apps, scrolling, typing — shows on the TV in real time. This uses more battery and Wi-Fi bandwidth than casting a single app, so it is best for short tasks like showing photos or demonstrating something to a group.
To stop mirroring, swipe down from the top-right corner of your iPhone to open Control Center, tap Screen Mirroring, and select "Stop Mirroring."
Troubleshoot if your iPhone does not see the Chromecast
If the cast icon does not appear or your Chromecast does not show up in the list, restart both devices. Turn off your Chromecast by unplugging it, wait 10 seconds, and plug it back in. Then restart your iPhone by powering it off and on. Open the app again and look for the cast icon.
If that does not work, forget the Wi-Fi network on your iPhone and reconnect. Go to Settings, tap Wi-Fi, tap the network name, tap "Forget This Network," then tap the network again and enter your password. Wait for the connection to complete, then try casting again.
If you still cannot see the Chromecast, open the Google Home app and check that the device shows as "Connected" in the device list. If it shows "Offline," your Chromecast has lost Wi-Fi — tap it, go to Settings, and reconnect it to your network.
What happens when you cast
When you cast, your iPhone sends a signal to the Chromecast telling it what to play, but the Chromecast streams the content directly from the internet, not from your phone. This means you can lock your iPhone, switch apps, or even turn off the screen and the video keeps playing on your TV. Your phone is just the remote control.
If you lose Wi-Fi connection, casting stops when ready. The Chromecast cannot reach the internet to keep playing. Reconnect to Wi-Fi and tap the cast icon again to resume.
Casting from Safari and other apps without a cast button
Some apps do not include a cast button. For Safari or any app without casting built in, use screen mirroring instead. Open Control Center on your iPhone (swipe down from the top-right), tap Screen Mirroring, and select your Chromecast. Your entire screen mirrors to the TV, including Safari, Maps, Photos, or any other app.
Screen mirroring works for any app, but it drains your battery faster than regular casting because your phone has to encode and send video constantly. Use it only when you need to show something that does not have a dedicated cast button.
Frequently Asked Questions
Do I need to pair my iPhone with Chromecast every time I cast?
No. Once both devices are on the same Wi-Fi network, you can cast when ready by tapping the cast icon. You do not enter a PIN or go through a pairing process each time. If you switch Wi-Fi networks, your iPhone will still see the Chromecast as long as it is on the same network.
Can I cast from multiple iPhones to the same Chromecast?
Yes. Any iPhone on the same Wi-Fi network can cast to the same Chromecast. Only one device can cast at a time, though — if a second iPhone tries to cast while another is already casting, it will take over and stop the first cast.
What if my Chromecast is on a 5GHz network and my iPhone is on 2.4GHz?
They need to be on the same network band. If your router broadcasts both, connect your iPhone to the same band as your Chromecast. Check the Google Home app to see which band your Chromecast is using, then manually select that band in your iPhone's Wi-Fi settings.
Can I cast audio only without the video?
Yes, if the app supports it. Spotify, YouTube Music, and other audio apps let you cast to Chromecast Audio devices or to regular Chromecasts. Tap the cast icon and select your device — the audio plays on your speaker or TV while your phone screen goes dark.
Why does casting stop when I close the app?
Some apps stop casting when you close them, while others keep playing. YouTube and Spotify usually keep playing even after you close the app, but other apps may stop. If casting stops, open the app again and tap the cast icon to resume.