Most worst app uses so much of data on just opening of app. Download speed is good but download option is not avialable for all videos. I have downloaded many videos using this app but in many videos I found problem. In many videos video stuck in middle and only sound comes but video disappears sometimes video comes but sound disappears which is main problem of this aap otherwise this app is good for downloading youtube videos and videos from other websites.Overall this app has some problems which developers should remove.