Sun Day

UV tracking and vitamin D calculator for iOS.

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Features

• Real-time UV index from your location
• Vitamin D calculation based on UV, skin type, and clothing
• Moon phase display at night
• Sunrise/sunset times
• Saves to Apple Health
• No API keys required
• Small and medium widgets for your home screen

Requirements

• iOS 17.0+
• iPhone only
• Xcode 15+

Setup

1. Clone the repo
2. Run xcodegen generate to create the Xcode project
3. Open Sunday.xcodeproj
4. Select your development team
5. Build and run

Usage

1. Allow location and health permissions
2. Press the sun button to start tracking
3. Select your clothing level and skin type
4. The app calculates vitamin D intake automatically

APIs Used

• Open-Meteo for UV data (free, no key)
• Farmsense for moon phases (free, no key)

License

Public domain. Use however you want.