Only full serving sizes I'm not sure what changed since I last uses this appa couple years ago, but it's pretty much useless now for calorie tarcking. You can only put in full serving sizes unless you want to do the math. For example, if you grab a beverage that is labeled in 12 ounce servings and you consume 14 ounces, you're now forced to do the math and put in 14/12 = 1.16666 servings. This is an idiotic idea and can't possibly be conducive to accurate use.