Hi there! I see you're having trouble logging into the XHouse IOT app on your iPhone. To help you better, could you tell me a little more? For example:

- Are you getting any error messages when you try to log in?
- Is this your first time logging in, or was it working before and stopped?
- Are you using your registered email or phone number to log in?

While I wait for your details, here are some simple steps you can try first:

1. Double-check your login credentials: Make sure the email or phone number and password you're entering exactly match what you registered with.

2. Restart the app: Close the XHouse IOT app completely (swipe it away from the app switcher) and open it again.

3. Ensure your iPhone’s internet connection is working properly, either Wi-Fi or cellular.

4. Check that the app is updated to the latest version in the App Store.

5. If you have forgotten your password, use the “Forgot Password” option in the app to reset it.

If the problem persists after trying these, I can guide you through checking app permissions or possible account issues.

Does any of this sound like what you are experiencing? Let me know!