From Lovely Baby God:
Tube Video Downloader is an app to download videos online from the Internet to your Android phone. You can download and save videos in different formats as FLV, MP4, 3GP, MOV, WMV, MKV, etc. This application DOES NOT DOWNLOAD VIDEOS FROM YOUTUBE because of the Terms of service. It automatically detects links from the Web browser, so you do not need to copy and paste them in the app.