Fallout is huge. Fans from all over the world waited eagerly for the GamesCon releases and for that, they have the Pip boy and some mobile app that debut on the iOS platform and later Android.
At first, you might think that you could have played this game as a teaser to its bigger release but it wasn't. It is a standalone freemium game for mobile.
Freemium. This ugly term is the buzzword of the mobile gaming industry. Free to play...