There are a few ways to test the Zentitle Service depending on your platform of choice.
If you are delivering an application to a desktop or enterprise type deployment choose the Desktop or Command Line testing options.
The command line version is very helpful for cross-platform testing without the need for a UI.
If you are delivering an Embedded/IoT product on ARM please use that article, otherwise, use the Android article if you plan to deliver using that OS on a device.