Several products that I have used with the barcode. I have scanned the barcode. And the number of calories on the label do not match what shows up on the tracker. One item says it’s 15 cal on the label and it comes up zero on the tracker. Another item is off by 40 cal. This is important to someone who does count calories versus macros. Is there a way to just put my own calories in? So that I could at least add them and know the total per meal and at the end of the day? Thank you peace