How to setup Gmail, Google Calendar, and Google Contacts in Settings
The iOS Settings app, Mail, Calendar, and Contacts section contains built-in support for Gmail, Google Calendar, Google Contacts, and related services.
1. Launch Settings from your Home screen.
2. Tap Mail, Contacts, Calendars.
Tap Add Account...
Enter PAU email address and password.
3. Choose allow to provide gmail with access to Mail, Calendar, and Contacts.
Once complete Google Sync will be enabled on your mail account.