Works on Fire TV box very well. Menu operation and unlike on my Samsunf TV. On Fire TV Stick impossible to use, only half a picture, upper half white, Menu not visible. Error necessarily fixed !!!!!! Then 5 ***** are possible !!!!! Is otherwise namely good - because free app. And I do not know any app with this offer, which does not require registration for Advanced Nutzungsmöglichkeiteten. For me, no argument this app so badly to evaluate.