Why doesn't Apple have a dedicated iCloud Keychain app yet?Password management should be easy so that everyone can make better security decisions.
With the number of usernames and passwords we have to use these days, it's practically impossible to remember them all. That's especially true if you use a different password with every service you sign up for (if you don't, you really should!).
Instead of doing the wrong thing and reusing passwords, it's highly recommended that you use a password manager. That way, you can have strong, unique passwords for all of your accounts without having to rack your brain every time you log in somewhere. While third-party password managers have existed for a long time, Apple has its own built-in solution in the form of iCloud Keychain.
It's a great tool that encourages you to have better password hygiene. However, the fact that it operates mostly in the background and doesn't make it clear where to see and amend your data means it still falls short of dedicated apps like 1Password and LastPass. That's why...
Source:
Why doesn't Apple have a dedicated iCloud Keychain app yet?