"World of Tanks" is full "free to play" game (even I pay for some premium tanks (so virtual toys)), EU and AWs - "Free to visit" games.
Since we're already off-topic I just want to add the reasons why EU and AWS aren't completely F2P. In EU you can take money out of the game. The devs don't want to become completely broke and shut EU down, so they make it hard to earn in-game money. I still feel that AWS has plans to allow you to take money out too and they also don't want to become broke and shut AWS down.
