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Sunlane

See exactly when direct sunlight reaches any spot

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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.

PH · launched Nov 3, 2026 · 1 upvote (top 65%) · 0 views

Niche: environmental and geospatial analytics software · 124 launches, 14 in the last 7 days ▼ -7% · Explore this niche →

Category and tags

  • Horizontal
  • Analytics & BI
  • B2C
  • Not AI
  • Commercial product
  • Android
  • Productivity
  • Weather

Visit website ↗ Source listing ↗

Could you build this?

Partial The sunlight UI and an AR sweep with a sun-position model are feasible with an ARKit-based iOS app, but accurate shadow occlusion from LiDAR meshes and horizon geometry needs real 3D and solar-geometry expertise.

What it would actually take: Build a native iOS app using ARKit with LiDAR scene meshes for occlusion, combined with an astronomical sun-position library and time-stepped ray casting against the mesh. The hard part is making shadow results accurate across seasons and terrain, which requires graphics and solar-geometry expertise plus on-device performance tuning.

Competitors

Other products that read as similar to this one : 358 launches clear the similarity bar, closest 8 shown.

Attention rank: #159 of 359 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).

Launched 220 days after the earliest competitor.

The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.