UVI·eye

UV, but for your eyes

$2.99 · Designed for iPhone. Not verified for macOS.

Your eyes don't get the same UV your skin does. UVI·eye estimates what actually reaches eye level, using solar elevation, ground reflection, and your gaze direction. Standard UV index tells you about your skin. Your eyes receive something quite different. Skin exposure peaks when the sun is overhead. Eyes do not — the brow shades them at high sun angles, while low morning and afternoon sun enters the eye almost directly. Ground reflection adds another path that the standard index ignores entirely. The result is that ocular UV often peaks hours away from solar noon. UVI·eye estimates UV at eye level from four inputs: Solar elevation, computed from your location and the date Direct incidence, weighted by the geometry of the human orbit Ground reflection, scaled by surface albedo Gaze direction relative to the sun The model is documented, not hidden. Assumptions and limitations are stated in the app, and the physics is written out so you can judge it yourself rather than trust a number. Weather data from Apple Weather. UVI·eye does not diagnose or prevent any condition. It is a physical estimate, not a medical device.

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Now available in mainland China. Minor fixes and stability improvements.

Version 1.01

The developer, 越 朱, 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 Linked to You

    The following data may be collected but it is not linked to your identity:

    • Location

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
  • 越 朱
Size
  • 3.1 MB
Category
  • Weather
Compatibility
Requires iOS 17.0 or later.
  • iPhone
    Requires iOS 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.
  • Apple Watch
    Requires watchOS 10.0 or later.
Languages
  • Simplified Chinese
Age Rating
4+
Copyright
  • © 2026 Zhu Yue
  • Privacy Policy

    • Supports

    • Family Sharing

      Up to six family members can use this app with Family Sharing enabled.