Game Changer 😎
This app is a game changer for someone like me who both lives in Florida and works outside a lot. I use it to help me keep track of my sun exposure and prevent myself from overexposure and farmers tans 😁🤙🏽
Free
About
This app provides personalized daily sun exposure schedules based on your skin type, live UV index, and cloud cover. It guides you on optimal times for vitamin D synthesis, circadian rhythm reset, tanning, and sleep optimization, while always keeping your burn limit visible.
✓Personalized daily sun schedule
✓Calibrated to skin type and UV index
✓Smart timer for exposure duration
✓Burn limit visibility
✓Four science-backed sun goals
✓Daily sun insights and tips
✓Progress tracker
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What's New in Sundog
1.0
May 4, 2026
User reviews
Developer apps
FAQ
What is Sundog?
Sundog is a health and fitness app that provides personalized daily sun exposure schedules. It helps users optimize their time in the sun for benefits like vitamin D synthesis and circadian rhythm regulation, while also warning them about their burn limit.
How does Sundog personalize my sun schedule?
Sundog calibrates your daily sun schedule based on your Fitzpatrick skin type, the live UV index, and real-time cloud cover. This ensures recommendations are tailored to your individual needs and environmental conditions.
What are the four science-backed goals of Sundog?
The four goals are Circadian Reset (morning light for sleep-wake rhythm), Vitamin D synthesis (midday UVB exposure), Gradual Tan (afternoon light for tanning), and Sleep Optimization (evening golden-hour light for melatonin production).
Does Sundog provide medical advice?
No, Sundog is designed for general wellness purposes only and is not a medical device. It does not provide medical advice. Users should consult a healthcare professional for any health concerns.
What devices is Sundog available on?
Sundog is available on iPhone, iPad, and iPod. It is designed for iOS devices.
How often is Sundog updated?
Sundog was last updated on May 4, 2026, with version 1.0. Future updates will likely continue to refine its features and accuracy.
Is Sundog free to use?
Yes, Sundog is completely free to download and use. There are no in-app purchases or advertisements.
What is the age rating for Sundog?
Sundog has an age rating of 12+. This indicates it is suitable for users aged 12 and older.