SunDay: Vitamin D & UV Tracker

SunDay: Vitamin D & UV Tracker

Skin health and protection

33 ratings
21 reviews
Free

Details

  • Released
  • Updated
  • July 22, 2017
  • May 27, 2025

Features

SunDay: Vitamin D & UV Tracker video #1 for iPhone
SunDay: Vitamin D & UV Tracker screenshot #2 for iPhone
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SunDay: Vitamin D & UV Tracker screenshot #4 for iPhone
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SunDay: Vitamin D & UV Tracker screenshot #6 for iPhone
SunDay: Vitamin D & UV Tracker screenshot #7 for iPhone
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About

This app helps you monitor your daily Vitamin D intake and stay safe in the sun. It features a smart timer to notify you about sunburn risks and allows you to track supplements for detailed health insights.

Vitamin D intake tracking
Sunburn risk timer
Supplement calculator
UV scanner
Progress statistics
Necklace integration
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What's New in SunDay

3.2.3

May 27, 2025

We’ve made performance improvements and squashed some bugs to make tracking your Vitamin D even smoother. Enjoy a better, faster experience!

User reviews

Камера на планшете не работает должным образом

Видимо нет поддержки Ipad, так как при настройке приложения камера боком и как я не крутила бы планшет, то никак ровно не ставится она и съемка меняется с поворотом и солнце не поймать, даже в повернутом виде ничего не происходит.

gimmicky

i did an experiment and pointed it to a bright flashlight from my ipad ..and apparently my flashlight from my ipad has a UV index of 1 …make it make sense 🫠🫡.. and you want us to take this app’s recommendations for my skin health. ?

Such a Fantastic app.

Really Timely also, execution is well laid out, pretty easy.

Absolutely LOVE this app!

I don’t usually leave reviews, but this app deserves it. From the moment I downloaded it, I was blown away by how easy it is to use and how smoothly it works. Everything is designed perfectly no annoying ads, no glitches, just pure convenience.
The best part? It saves me SO much time and makes my day way easier. Every feature feels like it was made just for me. And it’s not just me even my mom uses this app all the time! She’s always telling me how much it helps her stay organized and how simple it is to use. If both me and my mom love it, you KNOW it’s something special.
Trust me, once you try it, you’ll wonder how you ever lived without it. I’ve already recommended it to all my friends, and they’re hooked too. Don’t wait download it now and thank me later!
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LOVE IT !

This app made my life so much easier ! Also downloaded for my kids too, it’s very easy to use

FAQ

How does SunDay calculate Vitamin D intake?

SunDay calculates Vitamin D intake based on your skin type, age, weight, and clothing. It uses this data along with solar UV scanning and session timing to provide precise estimations.

Can SunDay help prevent sunburn?

Yes, SunDay features a smart timer that notifies you about sunburn risks. This helps you know when to end your sun exposure session to protect your skin.

Does SunDay track Vitamin D supplements?

Absolutely. You can include any additional Vitamin D supplements you take in your account. The app then provides detailed information about your overall Vitamin D level.

What is the Sun Finder feature in SunDay?

The Sun Finder feature is designed to help you locate optimal sun exposure even on cloudy weather days. It assists in maximizing your Vitamin D generation.

Is SunDay available on all devices?

Currently, SunDay is supported on iPhone devices. The app is intended for educational purposes and should not replace professional medical advice.

How often is SunDay updated?

The latest version of SunDay is 3.2.3, last updated on May 27, 2025. Updates typically focus on improving calculations, adding features, and enhancing user experience.

What is the user rating for SunDay?

SunDay has a rating of 3.9 stars based on 33 ratings. This indicates a generally positive user reception, though there is room for improvement.

Does SunDay offer a paid version or subscription?

No, SunDay is available for free and does not have in-app purchases or ads. The app aims to make Vitamin D monitoring accessible to everyone.