Snaptivity - Real-time photo sharing with the world nearby
Solaris Sky Calendar - An astronomy calendar right in your pocket
Flashgap - Time-delayed photo-sharing app of last night's embarrassment
Sundial App - Sun & Moon times and alerts for iPhone, iPad, & Apple Watch
Slingshot - Quickly share everyday moments with lots of people at once
Alpenglow - Never miss a incredible looking sunrise or sunset again