Hi Joshua Maralit,
Thank you for reaching Microsoft Community.
I am aware that you're having trouble signing in to the Surface app on your iPhone. I am here to help and let us work on this together.
Here are some troubleshooting steps you can try:
- Make sure you have a stable internet connection.
- Close the Surface app and reopen it.
- Restart your iPhone and try signing in again.
- Check if you have entered the correct email address and password for your Microsoft account.
- Try signing in to your Microsoft account on a different device or web browser to see if the issue is with your account.
- Uninstall and reinstall the Surface app on your iPhone.
I hope these helps. Let me know how it goes.
Kind regards,
Lavenia