Xiphos is Bible study software that is available for Windows and Linux operating systems. It is able to use modules from "The SWORD Project" which gives access Bible translations in many different languages. You are able to download Bible commentaries, dictionaries and other books as well. It is open-source software and is available free of charge.
I recently created a keyboard shortcut cheat sheet to help users navigate around the software more quickly. The cheat sheet can be found at Xiphos Cheat Sheet on Cheatography. Please check that out if you're a Xiphos software user.
Xiphos is an interesting name for the software. A xiphos is the double-edge sword used by the ancient Greeks. This is also a reference to a scripture found in Hebrews 4:12:
For the word of God is quick, and powerful, and sharper than any twoedged sword, piercing even to the dividing asunder of soul and spirit, and of the joints and marrow, and is a discerner of the thoughts and intents of the heart.