Hi! I see you’re experiencing a totally black screen issue with the BuyNothing app on your iPhone running iOS 18.7. To make sure I guide you correctly, is the black screen happening immediately when you open the app, or does it occur after some navigation within the app? Also, does the rest of your phone work normally, or is it just the BuyNothing app showing a black screen?

Based on what you describe, here’s a step-by-step approach that usually helps fix app black screen issues on iOS devices:

1. Close the App Fully:
- Swipe up from the bottom of the screen and hold (or double-click Home button if your iPhone has one) to open the app switcher.
- Find the BuyNothing app and swipe it up off the screen to fully close it.
- Then reopen the app to check if the screen loads properly.

2. Force Restart Your iPhone:
On iPhone models with Face ID (which iOS 18.7 devices likely have):
- Quickly press and release the volume up button.
- Quickly press and release the volume down button.
- Then press and hold the side button until you see the Apple logo.
This will refresh the system and may resolve temporary glitches.

3. Check for App Updates:
- Open the App Store, tap your profile icon at the top right.
- Scroll to see if there’s an update available for BuyNothing and install it if so.

4. Reinstall the App:
If the above steps don’t help, try deleting BuyNothing from your iPhone and reinstalling it from the App Store. This refreshes the app entirely.

5. Check Network Connection:
Sometimes, apps show black screens if they can’t load data properly. Make sure your Wi-Fi or cellular data connection is stable.

6. Check Device Storage:
- Go to Settings > General > iPhone Storage and check if your storage is nearly full. Low storage can cause apps to behave oddly.

If you’ve tried any of these already, please let me know which steps so I don’t repeat them and we can go deeper. Also, do you see any error messages or does the app just stay black?

Looking forward to your details so I can help you get this fixed! Are you satisfied with this initial approach?