Apart isn't a calorie app with opinions. It's five program principles, wired together. Scroll — the thread connects them.
Protein digestion starts in the stomach's acid — pH 1 to 2; starch digestion starts in the mouth and finishes in the far less acidic small intestine. Food combining keeps the two on separate plates. It's a traditional approach, not settled science — the research on it is limited — but many people find meals feel lighter this way, and it gives every plate a simple rule. Apart sorts it for you.
Research suggests insulin sensitivity tends to be higher earlier in the day. 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. Many people who react to histamine find it's the day's total that matters, not any one food — the headache, the flush, the 2am wake-up arriving after the bucket overflows. Apart counts the units (its own scale, estimated from published food lists) so you can see whether yours works that way.
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.
Apart is a wellness program, not medical treatment. These principles describe how the program works; they are not medical claims, and individual results vary. Talk to your doctor before changing your diet, especially if you are pregnant, take medication, or manage a health condition.