The team behind the photo narrative platform Exposure just released a brilliant little app called Golden Hour. Bringing their philosophy of doing one thing well to iOS, Golden Hour is an extremely minimal, beautifully designed app that alerts photographers when the most sought-after time of day is upon them.
Perhaps you've traveled to a different time zone and wonder when that golden hour will come about. An app just for that purpose seems to be illuminated by every possibility from the Exposure team. Besides being a minimal design the beautiful color behind the interface is worth having on your phone.