iPhone, iPad, or iPod Touch
Tap Settings, and then tap Mail, Contacts, Calendar.
Tap Add Account in the Accounts page.
Select Outlook.com.
Note: If your device is using an IOS version that is older than 7.0, you will not see the option for Outlook.com. Instead, select Hotmail as your account, and enter your Outlook.com address and password.
Select the fields that you want to sync. Tap Save.