I assume that if you are using the GlucoseBuddy App that you have an Apple Product. Here are four (4) free Apps to get you started counting carbs and three (3) web sites to check out.
Apple Apps:
1. Carb counting with Lenny the Lion (Children's Version, but it will help)
2. CalorieKing (It seems to work very well)
3. Restaurants (A big help if you eat out very often)
4. MyNetDiary (Be sure to turn on the "Show Carbs" in the Settings or use the "Daily Details Report" function)
WebSites:
Calorie King
Coheso
Carbs Per Day
Good Luck!