Sun ExposureSubscription
Sun Exposure Pro
Tracking, history, streaks, Sun Sessions and goal alerts are free. Pro adds the tools that use the UV Index, your skin type and the time of day.
Free and Pro, side by side
| Feature | Free | Pro |
|---|---|---|
| Time in Daylight tracking from Apple Watch | ✓ Included | ✓ Included |
| History charts and goal streaks | ✓ Included | ✓ Included |
| Sun Sessions on iPhone | ✓ Included | ✓ Included |
| Goal alerts | ✓ Included | ✓ Included |
| Smart sun guidance | ✓ Included | ✓ Included |
| Widgets, complications, Siri and Shortcuts | ✓ Included | ✓ Included |
| UV Index and weather forecast | — Not included | ✓ Included |
| Sunrise and sunset times | — Not included | ✓ Included |
| Burn Time and Burn Time Alerts | — Not included | ✓ Included |
| Vitamin D estimates | — Not included | ✓ Included |
| Vitamin D auto-logging to Apple Health | — Not included | ✓ Included |
| Vitamin D for Sun Sessions | — Not included | ✓ Included |
| First Light | — Not included | ✓ Included |
| Custom goal range | — Not included | ✓ Included |
| Reminders | — Not included | ✓ Included |
| Minimum Lux | — Not included | ✓ Included |
What Pro adds
- UV Index and weather forecast from Apple Weather, hour by hour, plus sunrise and sunset times.
- Burn Time: how long you can stay out at the current UV Index, and an alert when it reaches zero.
- Vitamin D estimates for the day and for each Sun Session, with optional auto-logging to Apple Health.
- First Light: when you first got daylight each day, against sunrise and your wake time.
- Custom goals: change the default 20-minute to 1-hour range, and set a Time to First Light goal.
- Reminders each time you add a set amount of time in the sun.
- Minimum Lux, which leaves out dim light such as sitting near a window.
Pricing
Sun Exposure is free to download, and Pro is an optional auto-renewing subscription. In the US, the App Store lists Sun Exposure Pro plans at $1.99 and $11.99. The app shows each plan's billing period and the price in your currency before you subscribe.
Managing your subscription
Subscribe from the paywall in the app on your iPhone. Your Apple Watch gets your Pro status from your phone, so open Sun Exposure on your iPhone first. To restore a purchase, change plans or cancel, go to Settings › Manage Subscription in the app.
Questions about Pro
What's included with Sun Exposure Pro?
Time in Daylight tracking, history, streaks, Sun Sessions and goal alerts are free. Pro adds the UV Index and weather forecast, Burn Time and Burn Time Alerts, vitamin D estimates and auto-logging, First Light, sunrise and sunset times, custom goals, reminders, and the Minimum Lux setting.
I subscribed, but Pro features are still locked.
Open Sun Exposure on your iPhone first; your Apple Watch gets your Pro status from your phone. If it's still locked, go to Settings > Manage Subscription on your iPhone and restore your purchase.
Why is my vitamin D estimate zero?
Your skin makes little to no vitamin D when the UV Index is below 3, which is common early and late in the day, in winter, and far from the equator. Time in shade or dim light doesn't count either.
Also check that your skin type is set, that your skin coverage isn't Full Coverage, and that Sun Exposure can use your location to get the UV Index. Vitamin D estimates are part of Sun Exposure Pro.
Start Your Sun-Smart Journey Today
Free on the App Store for iPhone and Apple Watch.
Download on the App StoreiPhone with iOS 18 or later. Automatic tracking needs an Apple Watch with watchOS 10 or later.
Disclaimer: Sun Exposure gives estimates, not medical advice. Consult your doctor to determine the right amount of sun exposure for you. Always use sunscreen, hats, and shade as needed.