iOS 18
Create a password for a website or app on iPhone
Your iPhone can generate a password to use on a website or app.

Go to the Passwords app
on your iPhone.
Tap All.
Tap
in the lower-right corner.
A secure password is created for you.
Enter details about the website or app, and a user name for your account.
Tap Save.
You can also create a password when you sign up for services on websites and in apps. See Create a strong password for a new account.