** These directions may vary depending on the version of iOS that is installed on your Apple device. Please contact the helpdesk if you require assistance.
** Click this link to learn more about the Google Device Policy
source: https://support.google.com/a/users/answer/138740#zippy=%2Ci-want-to-use-ios-apps%2Ci-want-to-use-google-apps-such-as-gmail