Solaris Sky Calendar - An astronomy calendar right in your pocket
Topstyle - TopStyle contains powerful tools for building standards-compliant web sites.
Lumy - Helps you track photographic times
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.
Sundial App - Sun & Moon times and alerts for iPhone, iPad, & Apple Watch
EnjoyCSS - CSS generator for rich graphical styles without coding