Download youtube video with android smartphone

We are very much fond of watching youtube video when we are online. It's very much enjoyable and we can feel happy and updated by this social giant media.Youtube is very great for us.so,hi my friends, how are you? I am now started to give introduction of such an app that is very great for us.
When you watch a video online you enjoy it,ok,it's natuaral.But when you are offline,you want to watch those videos again,then what you do if the video located on youtube? Here is the solution, just use this app "tubemate".It just give you step to watch and download those videos which you liked on youtube.when you load a video a green arrow will present, tap it and a menu will come asking you downloading size.select and download with resume support.
so click HERE to download it.