It's the easiest way to get all of your credit card details into iCloud Keychain, but you can manually add or remove your card info as well. If you buy something on your Mac while in Safari, and you have iCloud Keychain on, you'll be asked if you want to store your credit card information. How to manually add or remove personal and credit card info with iCloud Keychain on your Mac How to manually add your credit card information to iCloud Keychain for iPhone and iPad.How to manually add your personal information to iCloud Keychain for iPhone and iPad.Three numbers is much easier to remember than 16. It even stores your credit cards' expiration dates so you only have to remember your card verification code. Once you set it up, you can use it to fill out forms and pay for items online without having to remember that long string of numbers. It also stores your credit card details and your personal data, like your shipping address and phone number. ICloud Keychain is more than just a password manager.
