Sun-Day
Track sun & optimize vitamin D
About
This app helps you manage sun exposure and optimize Vitamin D levels. It provides real-time UV index data, integrates with health apps, and sends smart alerts for sun safety.
What's New in Sun
1.0
April 11, 2026
Developer apps
FAQ
What is Sun-Day?
Sun-Day is a tool designed to help you manage your sun exposure and optimize Vitamin D synthesis. It provides real-time UV index data and integrates with Apple Health.
How does Sun-Day track Vitamin D?
Sun-Day syncs with Apple Health to track your Vitamin D synthesis, offering a holistic view of your wellness related to sun exposure.
Does Sun-Day provide alerts?
Yes, Sun-Day offers intelligent alerts that notify you when to seek shade or reapply sun protection based on your personalized needs and current UV index.
What devices does Sun-Day support?
Sun-Day is currently supported on iPhone and iPod devices.
Is Sun-Day free to use?
Yes, Sun-Day is available for free.
How often is Sun-Day updated?
Sun-Day was last updated on April 11, 2026, with version 1.0. Further update frequency is not specified.
What is the age rating for Sun-Day?
Sun-Day has an age rating of 4+, making it suitable for a wide range of users.
Does Sun-Day have ads?
No, Sun-Day does not contain advertisements.