Solaris Sky Calendar - An astronomy calendar right in your pocket

Stylizer - A productivity-focused real-time CSS editor for serious web developers. Mac OS X and Windows.

Sundial App - Sun & Moon times and alerts for iPhone, iPad, & Apple Watch

EnjoyCSS - CSS generator for rich graphical styles without coding

Alpenglow - Never miss a incredible looking sunrise or sunset again

Rapid CSS Editor - Rapid CSS editor is quick, powerful and easy to use HTML and CSS code editor for web developers. Intuitive interface and intelligent features help you become more productive and create modern HTML5 and CSS3 based websites faster and easier.