SuperTube is a native YouTube app for BlackBerry 10 users
SuperTube allows you to switch the quality of the videos ranging from 144p, 240p, 360p, 720p and 1080p while you're in the middle of watching a clip, or you can make any of the options a default setting. You can also set different default settings for viewing video over Wi-Fi or cellular networks. The app shares the same category settings as the mobile YouTube site, giving you some familiarity over the choices you have when rummaging through the app for videos to watch.
If you're interested in SuperTube, head over to BlackBerry World from where you can download and install it on your BlackBerry 10 model.
source: SuperTube via Crackberry