I have an email that I use to register on websites that I am afraid I get junk mail from or that I do not trust. I downloaded the GMAIL app on iPad and signed in. When I switched to the Google Search app it asked me if I wanted to sign in using the account (the junk mail one) I used in GMAIL. So did YouTube. I thought these apps on iOS are separated and are not linked together. Where did Google store my email information on my iPad? I know Facebook and Twitter keeps me signed in from the Settings, but there is no such setup for Google accounts. How can I get rid of it?