you don't need any app to download
Just open youtube in any browser and open your video you want to download
Now go to url and remove every ward before youtube.com and type ss
It will lool like this ssyoutube.com\sjrodoajf46f4dk   as per your video
Now click ok and you will find your link to download.

I will try that. Thanks.

http://forum.flymeos.com/thread-28243-1-1.html

Hello bro
I just made a thread for you
See the link above and don't forget to like and comment on it