Vitamin D & UV Index Tracker

In-app purchases
3.5
65 reviews
Content rating
Everyone
5K+
Downloads
Content rating
Everyone
Learn more
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About this app

Track vitamin D with live UV index data, daily reminders, and personalized sun exposure guidance.

Why people use this vitamin D app:
- Check the live UV index for your location before you go outside.
- Use a vitamin D tracker to estimate how much vitamin D you may produce from sunlight.
- Get a vitamin D reminder when your best sun window is coming up.
- Follow safe sun exposure guidance based on skin type, UV index, and time of day.
- Use it as a sun exposure tracker, sun tracker, and UV index app in one place.

Built for everyday use:
- Live UV index and UV guidance for your exact location.
- Personalized vitamin D tracker estimates from your current conditions.
- Daily vitamin tracker tools to build a consistent routine.
- Smart reminders so you do not miss your vitamin D window.
- Session tracking to review your recent sunlight and vitamin D history.

If you want a UV index app, vitamin d tracker, vitamin d app, or vitamin d reminder that is simple and practical, this app is built for you.

Download today to track vitamin D, monitor the UV index, and make safer sun exposure decisions every day.
Updated on
Jul 1, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Location, Personal info, and Device or other IDs
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

3.5
65 reviews
Shawn Axsom
June 23, 2026
Exactly what I was looking for. Estimate vitamin D levels and optional sun exposure, what to aim for without burning, and best time of day to get sun.
1 person found this review helpful
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Biph Kreimier
June 6, 2026
love it!! it wont let me get premium tho. advertises all over but no place to make purchase
1 person found this review helpful
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xia long xia lin
May 8, 2026
the screen keeps freezing at random moments
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Content rating
Everyone
Learn more

App support

About the developer
Astralab Studios, Inc.
support@astralabstudios.com
1606 Headway Cir Ste 9134 Austin, TX 78754-5123 United States
+1 909-247-6022

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