Youtube mobile application on is very useful for those who dont have any laptop or computure. that they can use the youtube content in mobile application and this concept is so much useful for people.
Knowledhe hub- youtube app is best to search about any topic if u are completing ur degree master schooling or anything you can search for any topic in youtube .i think best feature is you can save video offline to watch later . You can also upload you videos in your youtune channel. Trending topic will help you to know what people are watching around . It is the highest rated mobile app