A free program for Android, by Games Workshop.

The Warhammer 40,000: The App is an interactive tabletop game that allows you to play and learn in a fun and engaging way. It is designed to make the game of Warhammer 40,000 as easy as possible. This means that you can play the game without having to flip through your book.

The rules are organized in such a way that they can be quickly accessed when you need them. In addition, you can search through them to find the rules you need.

The app is an invaluable tool for anyone who enjoys playing the game of Warhammer 40,000. It provides you with a quick and easy way to check your rules in the heat of battle, browse the codexes you own, and plan your next army.