KanbanFlow - KanbanFlow is a Lean project management tool allowing real-time collaboration between team members. Supports the Pomodoro technique for time tracking.
Knowflow - A flexible and versatile concept map editor.
Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.
MindNode - Delightful Mind Mapping for your Mac, iPad and iPhone. MacCapture Your Thoughts. Any idea starts with a loose collection of .
Kantree - Kantree is an adaptable and intuitive project manager for the enterprise.
RemNote - All-in-One Tool For Thinking & Learning