FastTrack is most useful for walking, running, biking, boating and when commuting, but you might find it useful when driving as well.
Colors, graphics and fonts are carefully selected to be used outdoors on a sunny day. The app is designed for secure, one-handed, thumb-operated usage on the move. Even the direction arrow conforms to ISO Standard 7001, like airport pictograms.
This apps shows you the closest way to a destination, 'as the crow flies'. It's not a straight line as you might think as the earth is curved.