It’s called Far Cry Outpost and, if you’re a little bit forgetful, it will help you keep track of all that you get up to. Outpost records your multiplayer and co-op achievements, as well as let you decrypt data found during the game. Naturally, you don’t just track your own stats, you can also compare them with other players to find out which of you is best at slaughtering tapirs.
You’ll also be able to customise your equipment and see how other players have responded to the custom maps that you’ve made, as the app will tell you whenever anyone likes one, or tags one as a favourite.
The app is available for both iOS and Android devices and it’s as free as the plants you wrench out the ground.