Tubemate - an application that will allow you in one click to download a video from Youtube to the android device.The interface of the Tubemate application is extremely simple and executed, of course, similarly to Youtube itself.All you need to do is find the video you are interested in and click the green arrow.
After that (if this video is available for download), you will be presented with several available quality options, among which you can choose the most acceptable for you.