Comparison

Amber Hour vs Gnomon

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

Amber Hour

Features
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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 โ€ข Golden hour and blue hour, morning and evening โ€ข Sunrise and sunset โ€ข A live sun curve showing where the sun is right now โ€ข A calendar for planning days and weeks ahead โ€ข A background that follows the colours of the sky through the day ON HOME SCREEN AND LOCK SCREEN โ€ข Widget counting down to the next golden hour โ€ข Lock Screen widgets in three sizes โ€ข Countdown in the Dynamic Island as the hour approaches โ€ข A reminder 10, 15, 30 or 60 minutes before WEATHER AND MOON โ€ข Cloud cover for exactly the window golden hour covers โ€ข Moon phase, moonrise and moonset โ€ข 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.

About

Gnomon

Features
Read full description

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

Amber Hour4 screens
Gnomon4 screens

Verdict

The call

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

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.

ScorecardNo meaningful differences
Amber Hour versus Gnomon: the parameters behind the verdict, then further details
ParameterAmber HourGnomon
PriceFreeFree
Update frequencyWeeklyโ€”
AdsNoNo
In-app purchasesYesYes
DevicesiPhoneiPhone
Requires iOS17.0 โ€” better18.6
Further details โ€” not scored
Size1 MB16 MB
Age rating4+4+
DeveloperALEXANDER GLASERAhmet Giray Ucar

In-app purchases

1 purchases

Amber Hour

One-time1
  • Amber Hour Pro$4.99
2 purchases

Gnomon

Subscriptions2
  • Gnomon+ Weekly$2.997 Days
  • Gnomon+ Yearly$24.991 Year

Questions

Is Amber Hour free?
Amber Hour is free to download, with in-app purchases available.
Is Gnomon free?
Gnomon is free to download, with in-app purchases available.
Do Amber Hour or Gnomon have ads?
Neither Amber Hour nor Gnomon shows ads.

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