Thank you so much!

Lose It is on both iOS and Android. Plus, IT'S FREE. Oh, there is an upgraded version (annual fee) that my wife uses because she likes to plan out her meals a day or two in advance, but I use the free version and just track what I eat. It tells me throughout the day how many calories I still have available for that day. As I have learned about how many calories are in each thing I eat, I know what I can and can't eat when I get close to the end of the day.