Does not work with me on the HTC One M8. Out of loyalty to Amazon, I would like to assign more than one star, but do it not because of popular Google sequence is softened with regard to the installation of apps. It is clear that Google monopolist in (his) Android system, if third-party markets are switched inactive by default setting, but is Google's IT know-how to be assessed as better than the Amazon. Accordingly, it should be noted that the setting "Unknown sources" is a potential security risk. Of course, Amazon is serious, I never deny, but said setting first made active, it has harmful goods easier to take account of their names. I see the layman a disadvantage here.