Sunned: Vitamin D & Sun Timer
UV Index, Safe Tan & Forecast
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Get the optimal amount of Vitamin D from daily sunlight without risking sunburn or skin damage:
- Personalized UV & Burn Clock: Real-time safe exposure calculations based on your skin type, time, UV index, and location.
- Serum Level Trajectory: Track daily intake from sunlight and supplementation toward your target serum blood level.
- Optimal Sun Window: Smart notifications for sunrise and sunset, circadian alignment, and when UV is high enough for synthesized D3.
- Updated for iOS 27.
The developer, Tindrels LLC, 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
- Seller
- Tindrels LLC
- Size
- 4.6 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - Mac
Requires macOS 26.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.0 or later.
- iPhone
- Languages
- English
- Age Rating
9+
- 9+
- Contains
Health or Wellness Topics
- Copyright
- © 2025 Tindrels LLC