You can now use the PIA iOS VPN App to secure your iPhone and iPad devices.
If you prefer to use OpenVPN Connect to connect from iOS, you may want to use the following configuration profiles. Note that you will need to install the app for these links to work. After opening the profile with the OpenVPN Connect app, import it using the + button in OpenVPN Connect, fill out your username and password, enable the Save Password switch, and connect.