Real-Time UV Dashboard
Know your UV risk in 2 seconds. Color-coded UV index with personalized burn time based on your skin type.
Enjoy the sun
confidently.
Real-time UV index, personalized burn times, vitamin D tracking, and smart sunscreen reminders. Your complete sun companion for iPhone and Apple Watch.
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Features
Smart sun.
Smart sun.
Beautiful skin.
Everything you need to enjoy outdoor life while protecting your health.
Smart Sunscreen Reminders
Never forget to reapply. Intelligent timers that adjust for SPF level, swimming, and sweating.
Vitamin D Tracking
Track your daily vitamin D synthesis. Science-based estimates personalized to your skin type and location.
Guided Tanning
Tan safely with personalized session timers. Real-time alerts based on your skin type and current UV.
Family Profiles
Protect everyone. Create profiles for each family member with individual skin types, including children with age-based safety calculations.
Apple Watch App
UV info on your wrist. Complications, burn time countdown, and haptic sunscreen alerts.
Screenshots
See Soleil in action
A beautiful interface designed for clarity and calm.
Pricing
Simple, honest pricing
Start free. Upgrade when you're ready. No ads, ever.
Free
$0
forever
No ads. No account required.
- Current UV index & 3-day forecast
- Basic sunscreen timer
- Home screen widgets (3 styles)
- Single profile
Most Popular
Premium
$19.99
/year
7-day free trial included
$2.99/mo
$49.99 lifetime
- Everything in Free, plus:
- 7-day hourly UV forecast
- Apple Watch app
- Vitamin D tracking
- Guided tanning mode
- Family profiles (unlimited)
- All widget styles
- Smart sunscreen reminders
FAQ
Questions & answers
What is the UV index and why does it matter?
The UV index measures the strength of ultraviolet radiation from the sun on a scale from 0 to 11+. Higher values mean greater risk of sunburn and skin damage. Soleil shows you the real-time UV index for your location and calculates exactly how long you can stay in the sun based on your skin type.
How does Soleil calculate burn time?
Soleil uses the Fitzpatrick skin type scale combined with real-time UV data from Apple WeatherKit to estimate your personal burn time. Factors include your skin type, current UV index, altitude, and cloud cover. These are estimates — individual results vary based on medications, sunscreen, and other factors.
Can Soleil help me get enough vitamin D?
Yes! Soleil tracks your estimated vitamin D synthesis based on published photobiology research. It considers your skin type, age, location, UV-B levels, and time outdoors. Note: these are estimates for wellness purposes — consult your doctor for accurate vitamin D levels via blood test.
Is Soleil available for Apple Watch?
Yes! Soleil includes a full Apple Watch app with UV complications for your watch face, burn time countdown, sunscreen reapply reminders with haptic alerts, and guided tanning sessions — all right on your wrist.
Does Soleil work for families with children?
Absolutely. Soleil lets you create individual profiles for each family member, including children with age-specific UV safety calculations. Kids under 6 months should avoid direct sun entirely, and Soleil provides age-appropriate guidance for children of all ages.
Is my data private and secure?
Soleil is built with privacy at its core. Your data stays on your device and in your personal iCloud account. We use no third-party trackers, collect no personal information, and never sell data. Analytics are fully anonymized via TelemetryDeck (EU servers, GDPR compliant).
How accurate is the UV data?
UV data comes directly from Apple WeatherKit, which aggregates data from meteorological agencies worldwide. Burn time and vitamin D estimates are based on established dermatological research (Fitzpatrick scale, Holick methodology). All values are clearly labeled as estimates.
What's the difference between free and premium?
Free gives you the essentials: current UV index, 3-day forecast, basic sunscreen timer, and 3 widget styles. Premium unlocks the full experience: 7-day hourly forecasts, Apple Watch app, vitamin D tracking, guided tanning, family profiles, all widgets, and smart reminders. Try premium free for 7 days with the yearly plan.