I hope an app I developed may be useful to cinematographers. Sundial shows essential solar and lunar data + allows you to create alerts for 20 sun/moon events including sunrise, solar noon, sunset, dusk, moonrise, and the full moon. It is for iPhone, iPad, and Apple Watch.
http://www.sundialapp.com/
I'm a film lover and have thought the alert feature might be useful on a film set, as tool to help to remind you of changing light conditions other than "looking around." The alerts are calculated and generated on the device without a server, and work without an Internet connection (such as on a remote set).
Sundial is free, with a one-time in-app purchase (currently USD$2.99) to unlock some features/restrictions, including the ability to jump to any location/date (assist in shoot planning) and enable more than one alert.
I welcome any feedback! Thank you. -Mike
