TubeMate is a great Android app which enables you to download YouTube videos to your Android device. The problem is Google keep removing it from the Android Market, no doubt due to people downloading content they do not own to their Android devices.
With this neat little app you can download many YouTube videos at once in different resolutions. It can extract audio from video files and convert them to MP3, in simple terms you can convert the videos to MP3.
The resolutions which you can download at are:
- 1280x720 [HD]
- 1920x1080 [Full HD]
If the app disappears from the market again you can download it from here.