59 Like Org mode Org-mode is for keeping notes, maintaining ToDo lists, doing project planning, and authoring with a fast and effective plain-text system. Free Open Source Mac OS X Windows Linux Customizable Portable Privacy focused Hierarchical structure Command line interface Emacs integration
7 Like ClickUp ClickUp is an all-in-one project management platform that eliminates the need of using more than one tool for your organization’s workflow. Freemium Android iPhone Android Tablet iPad Web Customizable Tabbed interface Drag n drop Kanban boards Support for @mentions Slack integration Hierarchical structure Team Collaboration Commenting Feature Modular System GitHub integration Task assignments