By selecting your target weight, you will from now on, live and eat like your lighter and slimmer self.
Plug in the calories of your last meal, and watch it burn away.
The app will let you know when you have completely burnt the last meal, allowing you to eat again.
At first, you will realize that you are eating large meals, and fasting longer hours.... with time, this feedback system will teach you to eat smaller meals. and gradually shed the weight into your newer self.