Do you know of any good iphone apps for basketball stat-keeping?

I work on basketball drills every day, by myself, and I'd like an app that I can enter data into like free throws missed and made and from where on the court, and same with field goals and 3 pointers. Kind of like a personal training app that will give me percentages and progress, for different aspects of my basketball game. But the only apps I could find were for team play and in-game situations. Thanks for the help.|||mabey try nba.com and thats all i can think of