Listen to this article (with local TTS) 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
- Clone the repo
- Run
xcodegen generate
to create the Xcode project
- Open
Sunday.xcodeproj
- Select your development team
- Build and run
Usage
- Allow location and health permissions
- Press the sun button to start tracking
- Select your clothing level and skin type
- 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.