Which completely eliminates the use for this app. At least in the sense it is marketed for. If you only want to show the movie when you keep an eye on the one you're showing it to, just show it from your own phone. But I guess the whole point of sexy movies is to be able to watch them away from your partner.

If you do trust the other party, I don't see how this app adds anything but complications. Don't get me wrong, I guess there are some practical applications for the underlying technology and from the looks of it, this seems pretty well engineered and designed. The advertised use case just does not make any sense to me at all.