For Apple Watch

Track Your Sun,
Build Your Glow,
Stay Sun-Safe

Your smart companion for outdoor living — helping you enjoy the sun with confidence, whether your goal is staying protected, boosting Vitamin D, or achieving a healthy tan.

Download Free Explore Features

Requires Apple Watch with watchOS 10 or later

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Features

Everything You Need for
Smart Sun Management

Included Free

📊

Daily Sun Tracking

Instantly see how much time you've spent in the sun today with automatic tracking via your Apple Watch.

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Smart Sun Guidance

Get personalized recommendations — whether it's time to get more rays, apply sunscreen, or cool off in the shade.

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Widgets & Complications

Quick access to your sun stats from your home screen or Apple Watch face.

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Exposure Notifications

Get alerts when you've reached your daily limit to stay sun-safe.

Premium

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Custom Exposure Goals

Tailor your sun time to fit your lifestyle — for Vitamin D, safe tanning, or balanced wellness.

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Vitamin D Estimate

See how much Vitamin D your body is producing based on watch data, the UV Index, and your skin type.

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Burn Time

Know exactly how much safe time you have left in the sun based on today's exposure and UV forecast.

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Forecasts

UV Index and weather forecasts help you plan the best times for outdoor activity.

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Reminder Alerts

Stay balanced with gentle nudges throughout the day.

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Sunrise & Sunset

Plan your perfect outdoor sessions around daylight hours.

How It Works

Powered by Apple Watch
Time in Daylight

Your Apple Watch already tracks how much time you spend in daylight each day. Sun Exposure takes this data further with personalized insights and actionable guidance.

Apple Watch Tracks Automatically

Starting with watchOS 10, your Apple Watch uses its ambient light sensor to measure your Time in Daylight — the minutes you spend outdoors in natural sunlight each day. This health metric is recorded passively in the background, no action required.

Time in Daylight data syncs automatically to Apple Health, giving you a record of your daily sun exposure patterns over weeks, months, and years.

Sun Exposure Adds the Insights

While Apple Watch captures your daylight exposure, Sun Exposure transforms this raw data into meaningful health insights tailored to you.

Personalized Goals — Set targets based on your skin type, location, and wellness objectives
Real-Time Guidance — Know when to seek shade or get more sun based on current UV conditions
Vitamin D Estimates — See how your sun time translates to Vitamin D production
Burn Prevention — Get warnings before you've had too much exposure
Historical Trends — Track your patterns and build healthier outdoor habits

Your data stays on your device and is never uploaded to external servers.

Why Sun Exposure

Find Your Perfect
Sun Balance

Sunlight is vital for Vitamin D and well-being, and many enjoy a natural tan — but overexposure puts you at risk. Sun Exposure helps you find the balance: enough sun for health and glow, without crossing into damage.

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Automatic Tracking

Seamless sun tracking with Apple Watch — no manual input needed.

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Privacy First

No personal information leaves your device unless you choose to share.

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Personalized

Tailored recommendations based on your skin type and wellness goals.

Start Your Sun-Smart
Journey Today

Download Sun Exposure and take control of your outdoor wellness

Download on the App Store