From the update:
BattleScribe is a fast and powerful army list builder for tabletop wargamers. Quickly and easily design your army on your computer or phone and share your list with friends.
It's cross-platform, so it works on Windows, Mac and Linux, and also has mobile versions for Android and iOS.
Suitable for almost any game system or army - data files exist for many of them. You can also create or edit data files using the tools that come with the desktop version.
This latest version adds support for allies as well as improved tools for data file authors.