Grail is a living interface for your biology. It pulls data from your wearables, your labs, and what you tell it — and turns all of it into a single breathing picture of where you are right now.

Touch any glowing circle to open it. You'll see the current reading, its clinical range, and what it means for your performance today. The brighter it glows, the better it's doing. The circles pulse on their own schedule — that's intentional. Biology isn't uniform.

A weighted composite of all active biomarkers. It updates slowly and randomly — because your body doesn't change by the second. Watch it over days, not minutes. A score above 80 means your systems are aligned. Below 60 means something needs attention.

Log meals and symptoms at the bottom. The more context you give Grail, the sharper the guidance it returns. Even rough entries — "felt foggy, skipped lunch" — are valuable signals when patterns emerge over weeks.

Hit Ask Grail and your entire biological profile — every biomarker, every logged symptom, every meal — gets routed through five AI models simultaneously. They disagree. They debate. A synthesis verdict comes back: a precise 7-day protocol for diet, sleep, and recovery. Built for you. Right now.

Export your Apple Health data and drop it into Grail. Every node that has real data stops simulating and starts reporting. Use Connect in the top bar to set up live data bridges from your devices.