Great game, few annoyances

This is a really great game, good to pass the time.

One of the annoyances is when playing a game and returning later to continue, the app starts over and youve lost all of your progress. An individual game can go on for a long time, and when trying to make a high score for a particular airport, I need to be able to save my progress and return later. But if I close the app for a while the game progress is gone. It does seem to keep progress if the game is closed for a short time and no other apps are opened.

I also wish there was a bit more substance to the game. Its basic, simple and fun but something more would be nice.

rossjohn1979 about APP Control