I just purchased the iPad version of BIAB. Very disappointing for Mac users. All it does is play an mp4 and show chord changes. The description does not warn the purchaser of this, so some feel ripped off. The description of the app should mention that only Windows users get to change tempo, key, etc on their iPad.

It would be nice if the Mac version had this capability. In the meantime, iRealb is a much better app for this purpose.