Build app to cache Youtube videos

The app should be like apps to cache youtube videos, responsive and easy to use. - Search for a video and click on it, the video will be played and caching in the same time, once completed then it should be played in future without having internet connection. - Searching videos should give hints or suggestions while typing and suggestions should be clickable. - Thumbnail image of a video should be visible per each video. - Getting full results from youtube videos. - The app should be lifetime available and working, no stop in future. - Responsive tabs including (favorite videos, History, etc...). Some more required details will be shared with the developer.