SunMax vs Vitamin D Window Widget

SunMax turns sunlight into science-based guidance for vitamin D and safer sun exposure. Using real-time UV data, a personalized profile, and a multi-factor model built around your skin type, exposed skin, sun angle, session timing, and weather conditions, SunMax helps you plan outdoor time more intentionally. KEY FEATURES Free features: • Personalized setup Create your profile, take the Fitzpatrick skin quiz, and tailor guidance to your body and skin type. • Vitamin D session tracking Start live sessions and watch your estimated vitamin D and burn-risk guidance update as conditions change. Daily limit of 20 minutes. • Real-time UV + weather intelligence View current UV, hourly trends, and forecast context to choose better times for sun exposure. • Apple Health sync Connect Apple Health to autofill your height, weight, and body metrics, import last night's sleep for your morning check-in, and save your sun-session vitamin D and time in daylight back to Health. Optional and off until you turn it on. • Daily goals, supplement logging, and reminders Track sunlight and supplement intake together so you stay consistent with your routine. • Account benefits (free) Create a free account to save and sync your data across devices, and customize avatar clothing for more accurate exposure estimates. • Limited past session logging Add up to 1 past session per day to backfill your history. Premium subscription features: • Unlimited vitamin D sessions Track as many sessions as you want with no daily time limits. • Unlimited past session logging Add as many past sessions as you need to complete your vitamin D history. • Morning and evening light routines Track circadian rhythm exposure separately from vitamin D sessions. • Wellbeing insights and correlations See how your sun exposure affects your sleep, mood, and energy throughout the day — enriched by sleep data from Apple Health. • Advanced analytics and longer-range trends View weekly and monthly progress with historical data and detailed insights. • Streak freeze protection Protect your daily streak with monthly freeze days. Subscription details: SunMax offers optional auto-renewing subscriptions for Premium features, including monthly, yearly, and lifetime options where available. A 7-day free trial may be offered to eligible new subscribers. Built for walks, workouts, beach days, and everyday time outdoors, SunMax helps you use sunlight more intentionally. Important: SunMax provides estimates and guidance, not medical advice. Terms of Service: https://www.sunmaxapp.com/terms-of-service/ Privacy Policy: https://www.sunmaxapp.com/privacy-policy/

Vitamin D Window shows you the exact hours when sunlight is strong enough for natural vitamin D production at your location. Set up the app and the widget and enjoy the time window in a snapshot. HOW IT WORKS The app calculates solar elevation angles throughout the day using your GPS coordinates. When the sun is high enough above the horizon (above 45° for optimal conditions, above 30° for partial), you get a clear vitamin D time window with start and end times. FEATURES · Real-time sun schedule — sunrise, sunset, and vitamin D hours at a glance · Solar progress bar — see where you are in the day's sun cycle · Smart widgets (small, medium, large) — check your vitamin D window right from your home screen · Daily schedule — it changes depending on the time of the year · Dynamic island with live countdown of the last minutes of vitamin D in the day · Notifications — don't lose the key moments of the day · Location-based — it changes depending on your location · Works offline — no internet connection required after setup · Beautiful solar-themed design — adaptive gradients that follow the sun through the day WIDGETS THAT KEEP YOU INFORMED Add a widget to your home screen and instantly see today's vitamin D window. The small widget features a progress bar in real time as you move through the vitamin D hours. Medium and large widgets show the full sun timeline with sunrise, sunset, and vitamin D periods. After sunset, widgets automatically switch to show tomorrow's schedule — so you always know what's coming. WHO IS THIS FOR? · Health-conscious individuals who want to optimize their sun exposure timing · People living at higher latitudes where vitamin D windows are seasonal (almost all countries) · Outdoor enthusiasts planning activities around peak sun hours · Anyone curious about their local solar schedule PRIVACY FIRST Your location is used only on your device to calculate solar positions. No data is collected, stored on servers, or shared with third parties. Everything runs locally. — Solar calculations powered by the SunCalc algorithm. Vitamin D window times are based on solar elevation angles and may vary depending on individual factors such as skin type, altitude, and atmospheric conditions.