Real-time UV, smart reminders, and guided sessions for protection, tanning, and vitamin D, all built to help you enjoy daylight without the damage.
See the live UV index and the safe window for every hour, plus a full week ahead, so you can plan beach days, runs, and errands around the sun.
Hour-by-hour
Today's safe window and peak UV, tuned to your skin.
A week ahead
Plan around the days the sun is strongest.
Start a session when you step outside and pick a goal. Sunly tracks your real-time UV exposure second by second and handles the timing for you.
Protection
A guided safe window with automatic sunscreen reapply alerts.
Tanning
Round-by-round, side-by-side timing so color builds without a burn.
Vitamin D
The exact minutes to hit your daily target, then a cue to cover up.
Reapply reminders timed to your sunscreen and the real UV load, so you stay covered the whole time you are outside, without watching the clock.
Perfectly timed
Reminders that match SPF wear-off and UV strength.
High-UV warnings
A heads-up when the UV climbs above your threshold.
Track your daily and weekly time in the sun and your vitamin D, spot the days you overdid it, and let Sunly write your time in daylight straight to Apple Health.
Daily & weekly trends
A clear picture of your sun exposure and vitamin D over time.
Apple Health sync
Time in daylight, alongside the rest of your health data.
Save home, work, and your next holiday spot. Check the UV anywhere in the world before you pack.
Tell Sunly your skin type and sun habits, and every forecast, safe window, tanning plan, and reminder is tuned to you.
Sunly works without an account. Your skin profile stays on your device, and location is used only to fetch UV data.
Free to download. Set up your skin profile and get your first UV forecast in under a minute.
App Store
Google Play
