FAQ > GENERAL > How much of my data plan will ARMED! use?

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ARMED! was purposely designed to send as little as possible; each player sends their "turns" much like a chess game.

However a bit more happens in a single turn than in chess, so we cannot guarantee that only "x" number of bytes will be used.

But in general, the most expensive thing you could do is play a Ranked Match over the 3G network, and even this should use less data bandwidth than browsing the internet.