AutoFill on iPhone helps with entering passwords, emails, and more, but can be frustrating when it doesn't work as expected.
AutoFill feature works in Safari and third-party browsers, allowing autofill of passwords, credit cards, contacts, and scanned text from documents using the camera.
To autofill passwords in Safari, tap on a text box and choose autofill from the pop-up menu or use the Passwords key icon to pick a password.
For autofilling email addresses, phone numbers, or contact details, tap a text field and choose AutoFill > Contact to select the information you want to input.