Comparison

Vitamin D Window Widget vs Vitamind

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Vitamin D Window Widget

This app displays the optimal times of day for natural vitamin D production based on your location and the sun's elevation. It offers real-time sun schedules, smart widgets for home screen access, and notifications to help you maximize your sun exposure.

Highlights
  • Real-time sun schedule
  • Smart widgets
  • Daily schedule updates
  • Dynamic Island countdown
  • Location-based calculations
  • Offline functionality
  • Solar-themed design
Features
Read full description

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.

About

Vitamind

Features
Read full description

The sun is nature's best source of energy. But how much sun do you need to get enough Vitamin D, and when is it actually strong enough? Vitamind takes the guesswork out of it. We help you find the perfect time window to get your daily dose of sun – safely, naturally, and personalized for you. How it works: The sun needs to be at a certain angle above the horizon for your skin to produce Vitamin D. By combining your location, real-time weather data (including UV index and cloud cover), and your skin type, the app calculates exactly when you should head outside. Key Features: Smart alerts: Get a push notification the moment the sun is strong enough (when the "Vitamin D window" opens). Personalized: Calculates the time you need based on your specific skin type (I-VI). Practical estimates: See how many minutes you need outdoors, whether you're wearing "T-shirt and shorts" or just exposing your face and hands. Visual dashboard: Track the sun's path and plan your day with our simple, easy-to-read Vitamin D graph. Disclaimer: This app provides general estimates based on algorithms and weather data, and is not intended as medical advice. Everyone's skin reacts differently. Use at your own risk and always avoid sunburn.

Screenshots

Vitamin D Window Widget4 screens
Vitamind4 screens

Verdict

The call

The clearest difference is device support: Vitamind at 4 against Vitamin D Window Widget's 1. Vitamind also leads on iOS requirement (15.0 vs 18.0). On price, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard2 real differences · 8 level
Vitamin D Window Widget versus Vitamind: the parameters behind the verdict, then further details
ParameterVitamin D Window WidgetVitamind
PriceFreeFree
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 2 weeks—
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhoneiPhone, iPad, iPod, Apple Watch — better
Requires iOS18.015.0 — better
Further details — not scored
Size2 MB10 MB
Age rating4+12+
DeveloperAirhopping, SLArild Andersen

In-app purchases

None

Vitamin D Window Widget

No in-app purchases

None

Vitamind

No in-app purchases

Questions

Is Vitamin D Window Widget free?
Vitamin D Window Widget is free to download, with no in-app purchases.
Is Vitamind free?
Vitamind is free to download, with no in-app purchases.
Do Vitamin D Window Widget or Vitamind have ads?
Neither Vitamin D Window Widget nor Vitamind shows ads.

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