Gnomon - Sun Path Tracker AR
Golden Hour & Sunset Planner
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
GNOMON is an AR sun and moon path planner. Point your phone at the sky and see exactly where the sun will rise, travel and set, drawn over your camera view, before it happens.
The gnomon was the first sun instrument in human history. This is yours.
EVERYTHING IS COMPUTED
No estimates and no fake data. GNOMON runs a full onboard ephemeris and computes every azimuth, altitude and event time from real astronomy for the exact place you are standing. Sunrise, solar noon, sunset, golden hour, blue hour, moonrise and moonset are all calculated on your device.
SEE THE LIGHT BEFORE IT ARRIVES
- The full sun path drawn over your camera, with past and future arcs
- Live azimuth and altitude readout as you move your phone
- A compass ruler with cardinal directions on the horizon
- Event markers for sunrise, golden hour, noon, sunset and blue hour
- A 24 hour time scrubber, drag it to preview the sky at any minute of the day
- Tap any event to jump straight to that moment
- Notifications before golden hour and sunset so you never miss the light
MADE FOR PEOPLE WHO CHASE LIGHT
Photographers planning a shot. Filmmakers scouting a location. Architects reading shadows. Or anyone who simply wants to know where the sun will be at 7 in the evening.
CALIBRATED LIKE AN INSTRUMENT
A quick compass calibration and a fine alignment step let you drag the on screen marker onto the real sun, locking the overlay to the sky in front of you.
GNOMON PLUS
Upgrade to unlock the full instrument:
- Moon mode with the full lunar path, phases, illumination, moonrise and moonset
- Date travel, preview the equinoxes and solstices and plan months ahead
- MIL angle readouts in NATO 6400 for precision work
Your location and camera feed never leave your device. Nothing is recorded and nothing is uploaded.
Privacy Policy: https://docs.google.com/document/d/1Lkcu0DWHy4q1U7TOvaT6jWfqO6LwIc5V2Q1fGxc1V2g/edit?usp=sharing
Terms of Use: https://docs.google.com/document/d/1m8JbuZmxgvlHB5qY7044NLyuA3pjJ3rzBy8fsmnKQhc/edit?usp=sharing
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Ahmet Giray Ucar, 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 Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Ahmet Giray Ucar
- Size
- 16.3 MB
- Category
- Photo & Video
- Compatibility
Requires iOS 18.6 or later.
- iPhone
Requires iOS 18.6 or later. - Mac
Requires macOS 15.6 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.6 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Gnomon+ Yearly $24.99
- Gnomon+ Weekly $2.99
- Copyright
- © 2026 Ahmet Giray Uçar