Xiphos - Xiphos (formerly known as GnomeSword) is a Bible study tool written for Linux, UNIX, and Windows...
e-Sword - e-Sword is a feature rich and user friendly free Windows app with everything needed to study the Bible in an enjoyable and enriching manner!
JW Library - Study the Bible in English, Koine Greek, and over a hundred other languages.
Bible by Olive Tree - Bible+, BibleReader or The Olive Tree Bible App is a fully featured Bible app.
Bible Explorer - Bible Explorer is the fastest and easiest to use free bible study software.
The SWORD Project - The SWORD Project is the CrossWire Bible Societys free Bible software project.