Amber Hour vs Gnomon
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Amber Hour
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The best light lasts about an hour. Amber Hour tells you exactly when โ and whether it will be any good. The app works out the sun's path for your location and shows today's golden hour and blue hour with a countdown, so you arrive while the light is still there. Everything is calculated on your phone, so the times are there even without a connection. FOR THE PHOTOGRAPHER โข Golden hour and blue hour, morning and evening โข Sunrise and sunset โข A live sun curve showing where the sun is right now โข A calendar for planning days and weeks ahead โข A background that follows the colours of the sky through the day ON HOME SCREEN AND LOCK SCREEN โข Widget counting down to the next golden hour โข Lock Screen widgets in three sizes โข Countdown in the Dynamic Island as the hour approaches โข A reminder 10, 15, 30 or 60 minutes before WEATHER AND MOON โข Cloud cover for exactly the window golden hour covers โข Moon phase, moonrise and moonset โข Astronomical darkness โ when the Milky Way can be photographed FREE AND PRO Amber Hour is free and includes all sun times, the calendar, reminders and the Home Screen widget. Amber Hour Pro is a one-time purchase, no subscription, unlocking the weather forecast, moon and astronomical darkness, Lock Screen widgets, the Dynamic Island countdown, widget customisation and multiple saved locations. PRIVACY Your location never leaves your phone apart from the request that fetches the forecast. There is no account, no tracking and no ads.
Gnomon
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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
Screenshots
Verdict
Amber Hour and Gnomon are too close to call on the numbers: across 5 compared parameters โ price, ads, in-app purchases and device support among them โ neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Amber Hour sells 1 one-off in-app purchase and Gnomon sells 2 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.
| Parameter | Amber Hour | Gnomon |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly | โ |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone | iPhone |
| Requires iOS | 17.0 โ better | 18.6 |
| Further details โ not scored | ||
| Size | 1 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | ALEXANDER GLASER | Ahmet Giray Ucar |
In-app purchases
Amber Hour
- Amber Hour Pro$4.99
Gnomon
- Gnomon+ Weekly$2.997 Days
- Gnomon+ Yearly$24.991 Year









