Altitude tracker for your iOS 8 device.
Graphs current altitude above sea level.
The blue plot is updated every second, the brown one - all session time.
Touch the plot to see the value at that point.
Fun to use on an airplane.
Find nearest of existing airports (10000 items) and show distance to it.
Not need internet connection.
Also you can play word-based game during flight - solve verse puzzles end enjoy.