Apart isn't a calorie app with opinions. It's five pieces of biology, wired together. Scroll — the thread connects them.
Digesting protein needs an acid bath — pH 1 to 2. Digesting starch needs the opposite. Eat them together and both jobs run at half speed: that's the bloat, the heaviness, the 4pm crash. Apart simply never asks your stomach to do both at once.
Insulin sensitivity is a clock, not a constant. So Apart gives carbs the daylight and protein the evening — two windows, never open together. The app shows which window you're in all day, and warns you before one closes.
Aged cheese, red wine, leftovers, anything fermented — each adds units to one daily bucket that doesn't reset between meals. Stay under your line and you feel nothing. Cross it and you get the headache, the flush, the 2am wake-up. Apart counts the units so you don't have to.
Everyone's histamine tolerance is different, so Apart starts you at 100 and watches. Two clear reactions above 85? Your line moves to 85 — with a confidence score. Fourteen days in, the bucket isn't a guess anymore. It's yours.
Every mood and symptom you log is matched against the last 48 hours of food. Every Sunday, Apart writes your week up in plain English — what stacked, what stalled, what worked. You don't read dashboards. You read sentences.