OpenVPN Connect is the only VPN client created, developed, and maintained by OpenVPN Inc. WHICH VPN SERVICES CAN BE USED WITH OPENVPN CONNECT? It is a client application that establishes and transports data over an encrypted secure tunnel via the internet, using the OpenVPN protocol, to a VPN server. The OpenVPN Connect app does NOT independently provide a VPN service. Official App for Access Server, CloudConnexa™, and OpenVPN compatible services.