http://iscoresports.com/

Does the app provide the ability to track/score only one player instead of the entire game? Any advice or would this be an enhancement? Thanks!

The program is not set up that way per sea, it is set up to score a game. it has been mentioned before that you could 'manually' dummy it down to a player on each team and use misc end inning button to rotate through half innings and just track his hitting perforance. but depending on your needs you would loose information like fielding stats, or base running stats.