Launch iPhone Settings.
In the Settings window choose General.
Click on VPN.
Now click on Add VPN Configuration.
In the Type menu choose IPSec
In the Description field type PrivateVPN - IPSec
Server: See server list below.
Account: Enter your username for PrivateVPN
Password: Type in your password for privatevpn.
Secret: privatvpn
Proxy: Off
Now click Done
You'll find the server list here: Server list
You are now connected!