GoldenHorizon — Sun and sky planner

Features

What it does

Today view for sunrise, sunset, twilight, golden hour, and blue hour

Moon phase, illumination, moonrise, and moonset details

AR-style sky arc planner for lining up a scene

Eclipse, planet, ISS, meteor, aurora, and Bortle references

Milky Way visibility scoring

Star-trail and timelapse planning calculators

Photographer mode for focal length, field of view, and alignment work

Shadow and drone-shadow planners for sun-angle decisions

The app computes planning data locally so you can understand the next light window, moon condition, sky event, or shadow direction before you head out.

Core tools:

GoldenHorizon uses established solar, lunar, and sky-position formulas for practical field planning. It is built for fast decisions: where to stand, when to wait, and what the light will do next.

Saved locations and plans stay on the device. Location access is used to compute local sky data. Camera access is used only when the AR sky planner is opened.

Privacy

Private by design

GoldenHorizon does not require an account and does not include third-party advertising or analytics SDKs. Content you create stays in the app on your device unless you explicitly export or share it. See the privacy policy.