Not a calculator but a helper: how good the food is, what to swap it for, and how much to move for it
A counter only answers “how much”. Here every dish gets three more answers: how good it is (by the open Nutri-Score algorithm plus a traffic light for sugar, salt, saturated fat and fibre), what you can honestly swap it for, and how many minutes of movement it costs — in the very activities you marked in your profile.
From MET values, the open compendium of activity intensity. The burn is “MET minus rest, times weight, times time”, so a heavier person works the same calories off faster and a lighter one slower.
No. Tap in portions — “a plate”, “a slice”, “a handful” — even once at the end of the day. Gram-level precision in food is an illusion anyway: eyeballing a portion moves the number far more than any decimal.
The diary lives in your browser or phone. The only thing that leaves is the barcode number when you scan a product — the camera frame itself is never sent anywhere.
No. It is a diary with hints based on open data. For illnesses, pregnancy and therapeutic diets the decisions belong to a doctor.