Notational Velocity is a software for Mac OS X used for notetaking. It allows users to create notes using solely a computer keyboard and search them using incremental find. Developed by Zachary Schneirov
License: Open Source
Notational Velocity is primarily focused on quick note-taking with a minimalist design and Markdown support, while Todo.txt emphasizes task management through a plain text format that can be integrated with other tools. Both have their strengths, but they cater to different needs: Notational Velocity for note-taking and Todo.txt for task management.