Solaris Sky Calendar - An astronomy calendar right in your pocket
Dark Sky - Hyperlocal weather information, now on the web ⛈
Sundial App - Sun & Moon times and alerts for iPhone, iPad, & Apple Watch
Weather Watchman - Find your ideal weather, anywhere in the world with Weather Watchman.
Alpenglow - Never miss a incredible looking sunrise or sunset again
Poncho The Weathercat - Poncho makes weather sassy. Now you can use it on Slack.