Wednesday I will give you a link to our Portal where you can watch TV on your laptops. Input will be greatly appreciated it. Enjoy it.
— Vivalive TV Official (@vivaentgroup) May 15, 2017
Very clearly states access to their "portal" so you can stream. There is no app coming according to the official twitter(at least on Wednesday). They originally stated an app would be available, but that is no longer the case. A portal is nothing more than a webpage that allows you to stream.