Hi! I see you're having trouble opening the Tapestri IO app on your iPhone; it shows a blank white screen. Let’s get this sorted out together. Just to confirm, is this happening every time you try to open the app or only sometimes? Also, have you tried any steps already to fix it, like restarting the phone or reinstalling the app?

In the meantime, here are a few straightforward steps you can try:

1. Force Close and Reopen the App
Swipe up from the bottom of the screen (or double-click the Home button if your iPhone has one) to bring up the app switcher. Find the Tapestri IO app and swipe it away to force close it. Then open the app again.

2. Check Your Internet Connection
Sometimes a weak or flaky internet connection can cause a white screen. Try toggling Airplane Mode on, wait a few seconds, then turn it off again to reset your connection.

3. Restart Your iPhone
Power off your iPhone and turn it on again. This can clear temporary glitches that might be affecting the app.

4. Update the App and iOS
Check if there is an update available for the Tapestri IO app in the App Store. Also, ensure your iPhone is running the latest iOS version (you mentioned iOS 18.5, which is recent, so unless a newer minor update is out, you should be good here).

5. Reinstall the App
If none of the above works, try deleting the app and reinstalling it from the App Store. This can fix corrupted app data that might be causing the blank screen.

Would you be comfortable trying these? If none of those help, we can dive deeper, like checking app permissions or network settings specific to iOS 18.5. Let me know how it goes!