I launched PrimeHour, an app that scores the light 0-100 so photographers stop shooting at the wrong time
The problem I kept hitting: I'd drive a couple hours to a spot and get flat midday light, or show up "an hour before sunset" and miss the actual window. Weather apps tell you if it'll rain — nothing told me when the light would actually be good, here, on this date.
So I built PrimeHour. You add your destinations + dates and it turns the trip into a shot-by-shot plan:
• Every location gets a 0–100 light score from sun angle, cloud cover, and forecast — with a plain-language reason for the number, not a black box
• A live sun & moon compass, an auto daily schedule with "set up by" times, and AI camera settings tuned to the gear you own
• Offline-first, so it all works in a canyon with no signal
Free to plan unlimited trips; Pro ($4.99/mo) adds the AI planning, full forecast, and auto-schedule.
Two things I'd genuinely love feedback on:
- Does a single 0–100 "light score" feel trustworthy, or would you rather see the raw factors?
- What would you like to see implemented in the future?