Organize, search and use icons the easy way. Iconjar gives you the ability to store all your icons in one place, just one click away.

… makes it easy to quickly create high-quality custom controls for your iOS apps, Mac apps and for the web.

compile Compass/Sass easily without resorting to command line interface — Compass.app helps designers compile stylesheets easily without resorting to command line interface. It is written in Java and works in Windows/Linux/Mac OS X.

… wireframing, mockups and prototyping for websites and applications

Wireframes on the fly … an online tool that makes it easy for you to create, link together, preview, and share mockups of your website or application.