Golden: UV Index & Tan Timer
Track UV, Tanning & Vitamin D
Free · In-App Purchases · Designed for iPad. Not verified for macOS.
Golden helps you make the most of every sunny day — safely.
Real-time UV, a smart tanning timer, and every session logged to Apple Health. Golden knows your skin type, your SPF, and where you're tanning, so every estimate is personal to you.
Your UV, on your Home Screen
Widgets put today's UV index and hourly curve where you'll actually see it — four sizes, matched to your app theme, tracking the sun through the day on their own.
Know when to go out
Today's UV at a glance, with an hourly forecast, sunrise and sunset, cloud cover, rain chance and feels-like temperature. See exactly when UV peaks — and when it's worth waiting.
Tan smarter, not longer
Golden calculates a safe exposure window from your Fitzpatrick skin type, your SPF, and whether you're at the beach, the pool, or in the backyard.
Flip reminders that actually help
Golden times each side and taps you when it's time to turn. Front, back and sides tracked separately, so you can see exactly how your session broke down.
Follow along from your Lock Screen
A running session appears in the Dynamic Island and on your Lock Screen as a live flip countdown — no need to keep the app open, or keep checking your phone.
Vitamin D, estimated and saved
Every session produces a Vitamin D estimate from UV and duration, written straight to Apple Health alongside your time in daylight.
Made yours
Eighteen colour themes. Your default SPF, your usual spot, and an alert when UV turns dangerous.
Golden is a sun-awareness tool, not a medical device. All estimates are guidance. If you have a skin condition or take photosensitising medication, speak to a dermatologist.
Golden+
Unlock the 7-day forecast, multiple locations, and unlimited activities. Payment is charged to your Apple Account at confirmation. Subscriptions renew automatically unless cancelled at least 24 hours before the period ends; manage or cancel any time in Settings.
Privacy Policy: https://oncedevelopment.com/privacy
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
UI/UX improvements to provide a more personalized experience.
The developer, Nicholas Glidden, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- Nicholas Glidden
- Size
- 26 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 22 more
- English, Czech, Danish, Dutch, Finnish, French, German, Greek, Hungarian, Italian, Japanese, Korean, Norwegian Bokmål, Polish, Portuguese, Romanian, Russian, Simplified Chinese, Spanish, Swedish, Traditional Chinese, Turkish, Ukrainian
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Golden+ Yearly USD 19.99
- Golden+ Monthly USD 2.99
- Copyright
- © 2026 Once Development