The download button opens the iTunes App Store, where you
may continue the download process. You must have iTunes installed with an
active iTunes account in order to download and install the software. This
download may not be available in some countries.
From PS mobile:
The world's most powerful combat WARSHIP are here waiting for you. This is a fierce 3D Navy Battleship game, need to beat rivals to win the victory Amazing Levels Day and night conditions 15 different battleships and planes Fast-paced action Exciting adventure Upgrades, bonuses and awards Try to survive alone in the Pacific Ocean