SunMax: Vitamin D Tracker

Sunlight & Circadian Rhythm

Only for iPhone

Free · In‑App Purchases

iPhone

Track vitamin D, sun safety, and circadian rhythm with live UV, personalized skin/exposure modeling, and smarter session insights. 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 see estimated vitamin D progress and burn-risk guidance update as conditions change. Daily time limit of 20 minutes. • Real-time UV + weather intelligence View current UV, hourly trends, and forecast context to choose better times for sun exposure. • Daily goals, supplement logging, and reminders Track sunlight and supplement intake together so you can 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 separate from vitamin D sessions. • Wellbeing insights and correlations See exactly how your sun exposure impacts your sleep, mood, and energy throughout the day. • 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/

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Improvements • Enhanced wellbeing insights: See how your sun exposure impacts your sleep, mood, and energy throughout the day with improved correlation tracking Bug Fixes • Fixed user data retrieval from the database • Improved data consistency and reliability

Version 1.4.2

The developer, Oliver Stojcevski, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Health & Fitness
    • Purchases
    • Location
    • Contact Info
    • Identifiers
    • Usage Data
    • Other Data

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
  • Oliver Stojcevski
Size
  • 27 MB
Category
  • Health & Fitness
Compatibility
Requires iOS 15.0 or later.
  • iPhone
    Requires iOS 15.0 or later.
  • iPod touch
    Requires iOS 15.0 or later.
Languages
  • English
Age Rating
9+
In-App Purchases
Yes
  • SunMax Premium Lifetime $69.99
  • Premium Yearly $39.99
  • Premium Monthly $4.99
  • Learn More
Copyright
  • © 2026 SunMax
  • Privacy Policy

    • More by Oliver Stojcevski

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