Hi! Thanks for reaching out about the Octopus Energy app crashing when you open it on your iPhone with iOS 18.6. I want to help get this sorted for you. Just to understand better:

- Is the app crashing immediately when you tap to open it, or does it start loading for a moment?
- Have you tried any troubleshooting steps already, like restarting your phone or reinstalling the app?

Meanwhile, here are some straightforward steps we can try together:

1. Force close the app: Double tap the Home button (or swipe up from the bottom if your model uses gestures) to see recently used apps. Swipe the Octopus Energy app up to fully close it, then tap it again to open.

2. Restart your iPhone: Sometimes a fresh restart clears small glitches. Hold the side button and volume up/down buttons until the power off slider appears. Power off, wait 30 seconds, then turn it back on.

3. Check for app updates: Go to the App Store, tap your profile icon, and see if there's an update for the Octopus Energy app. An update might fix bugs causing crashes.

4. Reinstall the app: If the problem persists, delete the Octopus Energy app by holding its icon and tapping "Remove App." Then reinstall it fresh from the App Store.

5. Check your internet connection: The app needs a stable connection to load data. Try switching between Wi-Fi and cellular data to see if that helps.

If you've tried these already, or it still crashes after these steps, please let me know. There have been some reports of crashes with current versions of the app on iOS 18, so I want to check if it might be a known issue affecting multiple users and help you escalate if needed.

Are you able to try these and share what happens? That way I can guide you further.