Hi there! I understand that when you try to download the United Airlines app on your iPhone from the App Store, the download button spins for a while and then stops. Let’s work through some steps to get this issue sorted out.

To start, could you please tell me if you’ve already tried restarting your iPhone? Sometimes a simple restart can clear up temporary glitches. Also, is your iPhone connected to Wi-Fi or cellular data?

While you check, here are some steps you can try:

1. Check Your Internet Connection: Ensure you have a stable Wi-Fi or cellular connection. Try switching between Wi-Fi and cellular to see if one works better.
2. Sign Out and Back Into the App Store:
- Go to Settings > tap your name at the top > Media & Purchases > tap Sign Out.
- Then sign back in and try downloading again.
3. Pause and Resume the Download: If the app icon shows on your Home screen, tap it to pause and then tap again to resume.
4. Check Your Payment Method: Sometimes the App Store won’t download if there is an issue with your payment method on file.
- Go to Settings > tap your name > Payment & Shipping and make sure your payment info is up to date.
5. Clear App Store Cache: Open the App Store and tap any of the bottom tabs (like Today, Games) 10 times in quick succession. This clears the cache.
6. Update your iOS: Make sure your iPhone is running the latest iOS version by going to Settings > General > Software Update.
7. Reset Network Settings:
- Go to Settings > General > Transfer or Reset iPhone > Reset > Reset Network Settings.
- This will erase saved Wi-Fi passwords, so keep those handy to reconnect.
8. Free Up Storage Space: Check if your iPhone has enough free space as lack of space can block downloads.

If you’ve done all this and it’s still spinning and stopping, there might be a deeper issue with the App Store or your Apple ID account. In that case, we can look into contacting Apple support or trying more advanced steps.

Please let me know where you are in this process or if you want me to guide you through any step in detail!

Are you connected to a Wi-Fi or cellular network right now?