Automatically fill in forms in Safari on iPhone
In the Safari app 
, use AutoFill to automatically fill in credit card information, contact information, and user names and passwords.
Fill in a form
Tap a field to bring up the keyboard.
Tap
or 
above the keyboard to move from field to field.
Fill in your contact information automatically
When you fill in contact information on a website that supports AutoFill, tap AutoFill Contact above the keyboard.
Tap Customize to edit and store your information for next time. Or, tap Other Contact to fill in someone else’s information.
Add a credit card for purchases
Go to Settings
> Safari > AutoFill > Saved Credit Cards > Add Credit Card.To enter the information without typing, tap Use Camera, then position iPhone so that your card appears in the frame.
You can also save the credit card information when you make an online purchase. See Set up iCloud Keychain on iPhone.
Use your credit card information
When you fill in credit card information, tap AutoFill Credit Card above the keyboard.
Enter your card’s security code (for security purposes, this code isn’t stored—you must enter it manually each time you use a card).
For greater security of your credit card information, use a passcode for iPhone.
Submit a form
Tap Go, Search, or the link on the webpage.
Turn off AutoFill
You can turn off AutoFill for your contact or credit card information, and for passwords.
Turn off AutoFill for your contact or credit card information: Go to Settings
> Safari > AutoFill, then turn off either option.Turn off AutoFill for passwords: Go to Settings > Passwords & Accounts, then turn off AutoFill Passwords.