Sunlane: Sunlight Hours

Sun tracker for your window

Only for iPhone

Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.

iPhone

Before you sign the lease: see how many hours of direct sun that balcony gets on the winter solstice. Sunlane tells you when direct sunlight actually reaches a spot — after the buildings, trees and hills in front of it. Point your iPhone at a window, balcony, garden bed or campsite. Hold the button and sweep along the rooftops and treetops. The sun's path is drawn over the camera view, and it goes dark wherever the skyline blocks it. You get the answer at once: how many hours of direct sun today, and exactly when. WHY IT'S DIFFERENT • Your real skyline, not a map. Other sun apps show the theoretical path; Sunlane uses the tree across the street and the tower next door. • Align with the real sun. Compasses drift. Put the sun in the ring and tap once to correct the heading. • Honest about what it knows. Directions you didn't sweep count as open sky, and the result shows how much you traced. FREE • Today's sun path over the camera • Skyline tracing and today's direct-sun hours and windows • One saved place SUNLANE FULL — ONE PAYMENT, NO SUBSCRIPTION • Any date, including the winter solstice • Direct-sun hours for every month of the year • Unlimited saved places • Moon and Milky Way core above your skyline • A share card for a landlord, partner or client Great for flat hunting, gardening, solar panels, photography and camping. Everything is calculated on your iPhone. No account, no server, nothing uploaded. Sunlane computes geometry — it does not forecast clouds.

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In-App Purchases

The developer, JIYULMOM, 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:

    • Purchases
    • Identifiers

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
JIYULMOM
Size
7.9 MB
Category
Weather
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.
Languages
English and 3 more
  • English, German, Japanese, Korean
Age Rating
4+
In-App Purchases
Yes
Copyright
© 2026 ootssu.com
  • Developer Website
  • Privacy Policy

    • Supports

    • Family Sharing

      Some in-app purchases and subscriptions may be shareable with your family group when Family Sharing is enabled. Learn More

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