just downloaded this app today, and it is great!!! it will allow you to log all the food you eat in a day & tally up all your calories. you can select food items for their huge database of pre-loaded foods, or you can add your own and enter the macros for those foods as well.
the main idea is you enter in your gender, height, weight, goal weight, age and it will automatically tell you what your calorie intake needs to be at, and as you add the foods you eat, it dedeucts from your total daily goal so u see how many calories are left to take in.
at the end of the day, you hit complete and it will save the day for you to look at later on if you want. much easier than keeping track myself, lol. it even has different brands of peaanut butter, including natural. breads, pastas, rice, meats, fruits, veg, etc.
just wanted to let you all know about it if you havn't heard of it or if you are looking for an easy way to keep track of your diet & calories.