@rjang.5151, by design you can’t autoplay video on mobile without that one tap/click prompt. That’s the browser design, and browser writers will block every way to do so, once they become aware of it.
The only way to work around it, I believe, would be for Trivantis to make their own “Learning Player App” (for both iOS and Android). I don’t expect them to do that, and it would be a bad idea in my opinion, but it would work.
Mobile browser developers go to great lengths to prevent auto-play on mobile devices. They make sure that user has to click something before autoplay starts working. So every authoring tool will create some kind of a prompt on mobile devices for users to first click something.