There is no cap on APs that you can earn per day (many people think that there are), but WW *suggests* that you strive for 4 a day, otherwise check with your dr. You have to use your APs the day that you earn them. With the CORE plan, you could use them for foods that aren't on the CORE list, since otherwise you are eating the CORE foods until you are satisfied. So if you are eating additional CORE foods, you really don't need to track them. HTH!