Ortus: Sunlight & Vitamin D

Ortus is a light instrument. It shows the sun where you stand: rising, climbing, setting. Through the day it tells you what that light is doing for your body and when to go out into it. Each morning you bank a dose of light toward a simple daily goal. Ortus counts it, holds your streak, and shows the week behind you and the days ahead. In the evening it dims with the sky and tells you when to wind down. No accounts. No data leaves your phone. Just you and the sun, kept in rhythm. What Ortus does - Shows the sun's real position where you are - Tells you the light to seek through the day - Banks your daily light toward a clear goal - Estimates the vitamin D you make, from the sun's height and your skin - Holds your blood test and carries the figure forward between labs - Imports a D-Minder history - Keeps your streak and a five-day forecast - Reads the sky through your camera to gauge cloud cover - Dims at dusk and reminds you to wind down - The science behind each phase, in plain words The vitamin D figures are modeled from the sun and your skin, not measured. Ortus is not a medical device.