Youtube is one of my favourite app since when I am using phones. This is a great app. One can learn new skills get new ideas regarding anything. For me YouTube has been a big source of knowledge, information, entertainment, music. Because of YouTube I had learn many things regarding computers, mobiles. When ever bored I used to see movies on YouTube. I am also a DIY fan and I like to make new things and YouTube helps me in this task. YouTube had also helps me in my studies. The user interface of this app is very simple and easy. The layout and design of the app is very attractive. It is very useful app that everyone must use. YouTube have helped me to learn everything I wanted at free of cost.