ENJOY THE SUN.
SKIP THE
BURN.

Sunly tracks the UV around you in real time, reminds you exactly when to reapply sunscreen, and times your sessions for safe tanning or vitamin D. Get the good of daylight without the damage.

3 modes

protection, tanning, vitamin D

Apple Health

time in daylight, synced

Now · Your location

UV 8

Very High · peak at 1:20 PM

Reapply sunscreen

in 1h 45m

22 min in daylight today

Synced to Apple Health

A SMARTER WAY TO DO SUN.

From the first ray to the last, Sunly keeps your skin in the safe zone.

THREE WAYS TO DO SUN.

Start a session when you step outside and pick the goal for your day. Sunly times it and watches the UV for you.

Stay fully covered

A guided safe-exposure window with automatic sunscreen reapply alerts, so you can enjoy a long day out without burning.

Build a tan, not a burn

Structured rounds with timing for each side, matched to your skin type, so color builds gradually and you never overdo it.

Hit your daily target

Sunly works out the minutes you need for your vitamin D goal at the current UV, then reminds you when to seek shade.

UP AND RUNNING IN A MINUTE.

1

Set your skin profile

Tell Sunly your skin type and sun habits. It tunes every alert, safe window, and forecast to you.

2

Check the UV

Open the app for the live index, today's safe window, and the week ahead for your location.

3

Start a session

Pick protection, tanning, or vitamin D, head outside, and let Sunly handle the timing and reminders.

GO DEEPER WITH SUNLY PRO.

The core app is free forever. Pro unlocks the full 7-day forecast, smart sunscreen reapply alerts, sun and vitamin D trends, Apple Health sync, and unlimited saved locations.

  • Full 7-day UV forecast and safe windows
  • Smart sunscreen alerts, sun and vitamin D trends
  • Apple Health sync and unlimited locations

Free trial, then a weekly or annual plan.
Cancel anytime.

GOOD TO KNOW.

Is Sunly free?
Yes. The live UV index, today's forecast, sun sessions, and your skin profile are free to use. Sunly Pro unlocks the full 7-day forecast, smart sunscreen alerts, sun and vitamin D trends, Apple Health sync, and unlimited saved locations.
Can Sunly help me tan safely?
Yes. Tanning mode builds color gradually with structured rounds and timing for each side, matched to your skin type and the live UV index, so you get a tan without crossing into a burn.
How does the vitamin D feature work?
Vitamin D mode estimates the minutes you need at the current UV to reach your daily target, based on your skin type, then reminds you when to seek shade. It is a guide to help you make the most of sunlight, not medical advice.
Does Sunly work with Apple Health?
Yes. With your permission, Sunly writes your time in daylight to Apple Health so it sits alongside your other activity and wellness data. Sunly does not read your other Health data, and you stay in full control of the connection.
Can I check the UV for other places?
Absolutely. Save home, work, or your next holiday spot and check the UV anywhere in the world, which is handy for planning trips and outdoor plans.
Which devices are supported?
Sunly is available for iPhone and Android. On iPhone it requires iOS 17 or later.

ENJOY THE SUN.
SKIP THE BURN.

Free to download. Set up your skin profile and get your first UV forecast in under a minute.