I reinstalled 1Password after 1 year and it remembered the account I had before, I never put my password in the iCloud manager and there was 1Password in the applications which does not take up any storage in iCloud. I would like to know where this information is stored because that's how it is with several apps like Spotify and I have changed phones in the meantime.
Normally, apps like 1Password and Spotify will store their account information in iCloud Keychain, and it can be referenced from there when you reinstall the app.
Data from within the app, is then obtained from the App provider's server to restore your history and other internal information.
Open Passwords in Settings on an iOS device or, Keychain Access.app on a Mac and delete the login information for the app or website from there.
The related accounts to these services will continue to exist though. You will just be removing the login information from the Keychain, not deleting the accounts. The accounts will continue to exist and can be accessed using the login information.
If you wish to delete the accounts with these apps or services, or remove any associated data stored on the App provider's servers, you would need to contact them directly to delete it.
How can I access this information and delete it?
it's not a password, it's just that it keeps the clnnection token like an email or the password, I don't have any password on icloud keychain.
Where is this login information stored?
