Soleil: UV Index & Sun Safety

Real-time UV index, smart SPF reminders, vitamin D tracking & family profiles. Live Activities, Apple Watch & widgets. Your personal sun safety companion.

Soleil gives you real-time UV index readings, personalized sun safety alerts, and smart sunscreen reminders — all from your wrist or home screen. Whether you're catching rays in the garden or on holiday abroad, know exactly when to reapply SPF, how long until you burn, and when the UV is perfect for safe vitamin D exposure.

REAL-TIME UV MONITORING • Live UV index from Apple WeatherKit, updated throughout the day • Hourly UV forecast so you can plan outdoor time • Colour-coded risk levels from low to extreme • Home screen and lock screen widgets at a glance

PERSONALIZED FOR YOUR SKIN • Fitzpatrick skin type profiling for accurate burn times • Personalised safe exposure windows • Guided tanning mode with smart timers • Exposure journal to track your sun history

SMART SUNSCREEN REMINDERS • SPF reapply alerts based on your sunscreen and activity • Log applications with product, SPF level, and body coverage • Live Activity countdown on your lock screen • Never miss a reapply again

VITAMIN D TRACKING • Daily vitamin D synthesis estimates based on your skin type and UV • Weekly and monthly progress towards your goal • Understand the balance between protection and vitamin D needs • Especially useful during the UK's darker months when vitamin D levels drop

APPLE WATCH & WIDGETS • Independent watchOS app with UV readings and burn timers • Complications for your watch face • Small, medium, and large home screen widgets • Lock screen widgets for instant UV checks

BUILT FOR PRIVACY • No accounts required — your data stays on your device • iCloud sync across your devices, encrypted end-to-end • No ads, no tracking, no data selling

Enjoy the sun confidently with Soleil.

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