Developer’s best friend
Dash’s fast search and access to a large collection of documentation sets was an instant productivity boost for me. The project I work on uses C++, Python, JavaScript, OpenGL, and the iOS SDK, all of which are available through Dash. Much faster than Xcode and the ad hoc web searching I was doing before, and now a vital tool that I use daily.
Chris Laurel about Dash 3 - API Docs & Snippets. Integrates with Xcode, Alfred, TextWrangler and many more.