DiabetesIQ - free. Helps diabetics learn more about diabetes
DailyCoach - free. Motivates users to increase daily activity and exercise
GlucoseBuddy - free. Helps track sugars, weight and diet
GoMeals - free. Tracks carbs that you add to your plate
DietPoint (android)-free. Calculate calories, grocery list feature
Lose It -free. Helps track calories and carbs.
WeightWatcher’s Mobile - free (but you need a subscription to WeightWatchers program