"Arena Stats for Halo 5" is a free iPhone app developed by Chris Sprague that provides Halo 5: Guardians players with easy access to their game play statistics. With this app, players can track their multiplayer Arena and Warzone stats, including weapon accuracy, kills and deaths, medals, CSR rankings, and match history.

One of the key features of "Arena Stats for Halo 5" is the ability to compare your performance against your friends and opponents. By keeping a list of your friends and opponents, you can see how you stack up against them in various game statistics. This feature adds a competitive element to the app, allowing players to strive for improvement and bragging rights.

It's worth noting that "Arena Stats for Halo 5" was created under Microsoft's "Game Content Usage Rules" using assets from Halo 5: Guardians. However, it is important to mention that this app is not endorsed by or affiliated with Microsoft.

Overall, "Arena Stats for Halo 5" is a useful tool for Halo 5: Guardians players who want to keep track of their game play statistics and compare their performance with friends and opponents.