A free program for Android, by MobiDevApps.
The Video Downloader app is a video downloader that supports almost every website. It allows you to download videos in different formats, including MP4, MOV, FLV, WEBM, and more.
It's very easy to use and has a user-friendly interface. You don't need to register an account. You don't need to install any additional plugins. You just need to enter the website URL and you're done. The app will detect the video and automatically start downloading it for you.
The app has a built-in AdBlocker that allows you to block ads on websites. It supports multi-connection download management. It also supports multiple SD card support.
User reviews about Video Downloader
by Andrzej
No YouTube but works on every other site in the Internet