Except for these two apps from Grapplearts.com (which is a site for BJJ players).
I bought the first one, and so far, it's kind of nice. All the videos are included in the download, so you don't have to stream them from the net somewhere. It covers the basic BJJ techniques, nothing fancy, but that's fine by me. My grappling game is pretty weak, so I could use all the help I can get.
You also get a short PDF book for free, but I haven't investigated that, yet.