High Quality Content by WIKIPEDIA articles! LaunchBar is a launch application for Mac OS X. It provides access to user`s applications and files, by entering short abbreviations of the searched item`s name. It uses an adaptive algorithm that `learns` a user`s preferred abbreviations for a particular application. For example, Adobe Photoshop may be launched by simply typing `pho` after training and Interface Builder can be opened by typing `ib` even though that sequence of characters does not appear consecutively anywhere in the name of the application.