Navigate to App Store to search, download and install AnyConnect client as shown in the images below.
Open Cisco AnyConnect Secure Mobility Client to allow notifications and tap on Connections to Add a VPN connection.
Add VPN connection data as shown in the image below and click Save
Replace the server address with the one you desire [more to come soon]:
Hong Kong - hk1.ipdatafone.net
Japan - jp1.ipdatafone.net
Allow adding of AnyConnect VPN configuration by entering your iOS device password as shown in the image below.
Enable Cisco AnyConnect from the main screen and enter your PrivateVPNCredentials
Login information required are as follows:
USERNAME = email address you used for signing up for an account at PrivateVPN.com
PASSWORD = password you used when signing up PrivateVPN.com
Once done hit Connect.
You should be connected now. As shown in the image below.