GolfXpress 2 is a great tool to help you improve your game, or the game of your students or golf buddies. You can track performances of as many players you want and get statistics and graphics using specific criteria

to help find where the player must improve. Based on the scores, GolfXpress will estimate handicaps, using the formula you select

(US, Europe or Australia).

You can even track how much you spent in lost balls :)

Update: You can import files from iPhone application Golf Scores.