Gmail is great email application where you can use this several features for personal and professional use. When it comes to set up Gmail on iPhone then you just follow this simple steps: - first of all, Go to settings icon, then go to the Mail, contacts, calendars. After that click on "Add Account", once there select Yahoo!. Input your name, email address, and password of your email account you’re adding. When completed click on Next button and then click on Save.