The native Mac version (BibleWorks Mac Installer) is now compatible with OS X 10.9 (Mavericks).
10/25/2013 11:30 AM update: The signed version is now posted! If you get an "unidentified developer" message, please re-download the installer dmg.
If you're running OS X 10.9, please RESTART your Mac and follow these instructions:
Thanks for your patience!