You can download all types of videos,audio and files from the internet with only one application. It is completely free and easy to use.
> download videos, music and any downloadable file
> download folder changing
> multiple SD Card support
>Find the file in SDCard/Download/downloadfile name
Note: You can download video using api and video id from this app https://play.google.com/store/apps/details?id=com.droidlab.oktube