Select Calendar and any other Apps you want your account to use.Go to Settings > Calendar > Accounts > Add Account.Setting up Google Calendar on an iOS Device If your Gmail account is not set up on your iOS device: For iOS and Android devices, you also have the option of downloading the Google Calendar app from the App store or Google Play store. For information on how to set up applications made by Google, see 'How do I use G-Suite apps on my mobile device?'. This article applies to built-in calendar apps on your mobile device.
