Available for: iPad, iPhone, Android, Mac, and Windows.
The New Collegeville Bible Commentary includes selected books of the New Testament at this time (see list below). It is an excellent resource tool for Bible students. Each commentary book begins with an introduction which includes discussion on the authorship, the date it was written, the setting it was written in, an outline of the text, the purpose it was written for, and other topics relevant to the writing of the book. The commentary then turns to a verse-by-verse exegesis, including references to other locations in scripture that are related to the topic at hand. You can view detailed screenshots here.
This download includes the commentary on the following New Testament books: