OmniFocus is a “personal productivity application” designed to capture and organize tasks. It can be used to store, manage and process actions. Tasks can be assigned to projects and linked to contacts. Visuals are also used to indicate what to do next.
OmniFocus supports the “Getting Things Done” management method developed by David Allen, according to The Omni Group. It can import data from kGTD documents, sync with iCal, perform filtering by project and task, support file linking and save different views.
System requirements are Mac OS X 10.4.8 or later.