One purchase, the whole world. The Full Game Unlock opens every airport and level: a one-time $4.99, no subscription, and it plays on both web and iOS.
A handful of starter levels to learn the game and find your feet: free, in your browser, forever.
40+ airports worldwide, every difficulty from Novice to Master, on web and iOS, and you support an independent developer.
Unlock from inside the game whenever you're ready. Your progress and purchase carry across the web and the App Store.