We've had a great year, thanks to our users, and the awesome Skyclock team. So we've made Skyclock free for the holidays!
In Google Play: https://goo.gl/hPvK5L
in the App Store: https://goo.gl/qpufHE
Skyclock is the definitive sun calculator. Our users want to plan their day knowing how much daylight they can plan for..Pilots, hunters, golfers, photographers, and bikers all use Skyclock because it is the ideal situation awareness app.