XV looks like a really exciting new free app from Matthias Media for helping to gain an overview of the whole Bible storyline.  Find out more about it here or search for and download it from the AppStore.

From the Matthias Media main web page:

A tour of the big breathtaking picture of creation, the fall and the history of God’s dealings with Israel, the promise of restoration, the life, death, and resurrection of Jesus, and what is still to come—the whole story, with all its ups and downs, and with the certainty of God’s promise shining through.