Tubemate is not a good app as first of all its app after some days it wants the updation.its concept and design was also bad as we have to see the present process of the download you have to find where it is showing .there no other functions expcept downloading youtube video and its speed also slow .as if you have to download youtube video you can simply download it by typing ss in the url.so I can say that it is not useful as its downloading speed is very bad.its not that much satisfing to use because you can download video from other method also.