Why does your app show a different calories record from the other app I have?

Our app counts only those calories that you currently burn by walking to keep track of how intensely you walk. Your other app might count the total calories per day that your body expends from 12:00 in the morning to the current time, taking into account your baseline metabolism and activity level (sedentary, light activity, moderately active, very active, extremely active). So, the amount of calories you see in the other app may even include the calories you burn when sleeping. This is another way your data can be tracked, but, unfortunately, it won't determine how many calories exactly were expended just by walking.