ZenMate Ultimate is 100% OpenVPN compatible! With OpenVPN, you can use the VPN on other platforms such as Ubuntu, Linux and other operating systems and many more.
If you are on the Ultimate plan already, you can find the instructions for setting it up on your device on the Support Page for OpenVPN (as OpenVPN works for so many different platforms, we currently only have instructions for the most popular ones. If your device isn't listed, simply find an OpenVPN client that works for your platform and then find the VPN configuration files on the ZenMate account dashboard).
Get a new ZenMate subscription here or upgrade your existing Premium subscription (any existing time in your account will add-up).
*** OpenVPN for Ubuntu 18.04 ***