You can remove all 3rd party advertising by buying any In App Purchase via the Armory screen.
From the main page tap the Armory button.
The purchase of any Premium weapon, or premium Dog Pack will remove the advertising.
Additionally purchasing any coin pack from the coin store located in the top right corner will also disable the ads.
Please note that any item purchased using in-game currency will not disable ads.
Please note that this will not turn off Kiip Rewards. For instructions on how to turn off Kiip please click here.