Between Titanfall, Dark Souls II, and a new Metal Gear game, employers across the globe can probably plot a decline in efficiency around recent high-profile video game releases. But only one of them has the obligatory mobile tie-in app, and that's Metal Gear Solid V: Ground Zeroes (a.k.a. MGSV: Appetizer). Konami's companion app is now available in the Play Store as a free download.

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The companion app basically pretends to be Big Boss's personal PDA, labeled as "iDROID" in a tongue-in-cheek and somewhat anachronistic fashion. The most useful mode is a bird's eye view of the game's map, letting you plan out your tactical approaches in a more complete way without resorting to the pause menu. You can also manage your base and troops a la MGS: Peace Walker, either playing a stand-alone mobile game or playing directly in your console game. The last function is a log of all the audio tapes collected by the player in the game, re-playable at any time. 

Impressively, you don't actually need the PlayStation or Xbox game to use the companion app - you can play the Mother Base mode as a stand-alone game, if you're so inclined. Naturally you'll need a console disc to use the map or audio log features. The MGSV: Ground Zeroes companion app is free with no in-app purchases, and it's compatible with all Android 2.3+ devices.