Halo Carnage is an iPhone app developed by 4PiLabs PTY LTD, available for free in the Education & Reference category. This app provides an extended Carnage Report for Halo 5 players, automatically updating to display the latest Arena, Warzone, or Custom Game Carnage Report after each Halo 5 match. It offers in-depth in-game statistics such as Score, Field Stats, Average Time Alive, Accuracy, KDA, Top Spree, rank progression, tools of destruction, medals, and kill information.

Users can access their previous games, view detailed player information within each game, search for other players, and share individual games using a unique URL to the Halo Carnage website. To utilize the app, simply input an Xbox Live gamertag that has participated in the Xbox One game Halo 5.