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Vitamin D Window Widget

Vitamin D Window Widget

Vitamin D Availability Window

1 ratings
1 review
🌟 Lifestyle
💪 Health & Fitness
Free

Details

  • Released
  • Updated
  • February 24, 2026
  • June 26, 2026

Features

Developer

Airhopping Sociedad Limitada
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Vitamin D Window Widget screenshot #1 for iPhone
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About

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.

✓Real-time sun schedule
✓Smart widgets
✓Daily schedule updates
✓Dynamic Island countdown
✓Location-based calculations
✓Offline functionality
✓Solar-themed design
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What's New in Vitamin D Window Widget

1.2.3

June 26, 2026

Bug fixes and more info in the medium size widget

User reviews

Most RecentHighest RatedLowest Rated

Fantastic app

Fantastic app! Exactly what we were looking for! Works great as both a standalone app and an iPhone widget!! Two minor feature requests:
1. On the “circadian clock” screen within the app, the text is very small & light for “solar noon” which makes it hard to read. It would be great if this text was larger or if it was listed at the bottom of the screen in the “solar windows” section.
2. On the widget, it would be great if we could add solar noon there. But of course, it’s already easy enough to just tap on the widget to go into the app.
Besides these feature requests, this is the absolute perfect app!
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scotty321scotty321

Developer apps

Airhopping Viajes multidestino
Airhopping Viajes multidestino

by Airhopping Sociedad Limitada

✈️ Travel

(8)

Free
With Ads
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FAQ

What is the Vitamin D Window Widget?

The Vitamin D Window Widget shows you the specific hours when sunlight is strong enough for natural vitamin D production at your current location. It calculates this based on solar elevation angles.

How does Vitamin D Window Widget work?

The app uses your GPS coordinates to calculate solar elevation angles throughout the day. When the sun is above 45° (optimal) or 30° (partial), it provides a clear window with start and end times for vitamin D production.

Does Vitamin D Window Widget work offline?

Yes, the app works offline. Once set up with your location, it can calculate solar positions and vitamin D windows without an internet connection.

Can I see my vitamin D window on my home screen?

Yes, the app offers smart widgets (small, medium, and large) that can be added to your home screen. These widgets provide an instant view of today's vitamin D window and sun timeline.

Does Vitamin D Window Widget have ads?

No, Vitamin D Window Widget does not contain advertisements. It is a free application designed to provide information without interruption.

What devices is Vitamin D Window Widget available on?

Currently, Vitamin D Window Widget is supported on iPhone devices. Future platform expansions may be considered by the developer.

How accurate are the vitamin D window times?

Vitamin D window times are based on solar elevation angles and are calculated locally. Individual factors like skin type, altitude, and atmospheric conditions can influence actual vitamin D production.

When was Vitamin D Window Widget last updated?

The latest version of Vitamin D Window Widget, 1.2.3, was last updated on June 26, 2026. This indicates regular maintenance and potential feature improvements.