Using GearVR in trade show experiences...

We are looking into using GearVR in a few trade show experiences and were wondering what's the best way to present 360 video outside the GearVR interface? With apps built in unity, it seems just running an app via dev mode could work, but 360 video does not play well with the unity player overhead. Are there any off the shelf 360 video players that will run without the GearVR front end OS?