Try Protuber app, allows cache'ing
Ok I downloaded this app , at first it seemed great
Then I noticed no volume slider on the screen when playing a video , I hate pressing the volume button up & down , is unnecessary just add a damn touch slider
The volume slider does appear in the cache video player
Ok the other thing I don't like if my upload videos are private they won't play in this app
Private uploads work in mctube & mctube also has the volume slider
Everything else about protuber is just like mctube, infact it even looks better
Mctube has that baby brown **** color
So of those 2 things don't bother you get protuber
You can download videos in 1080p or 360p whatever you want just like mctube
I'm sticking with mctube , the no volume slider drives me crazy , the pandora ipad app is like that too