IThoughtsX is a great Mac mind mapping app that helps you organize your thoughts, ideas, and information visually. Typical scenarios: task planning, meeting summaries, brainstorming, project planning, goal setting, work breakdown structure (WBS), lecture notes/revisions, meeting minutes, task completion (GTD). IThoughtsX support most mind mapping software format, such as: MindManager, iMindmap, Freemind/Freeplane, Novamind, XMind, Mindview, ConceptDraw, OPML (OmniOutliner), Excel/Numbers/Outlook/ToodleDo (CSV), Markdown, plain text/rich text. Supported exports are: PPTX, DOCX, MS Project (XML), PDF, PNG, Markdown, HTML, Things, iCloud calendar/Reminders. Support for cloud syncing with iCloud, Dropbox, and WebDAV.