Natara Bonsai is described as 'Palm OS and Windows Mobile outliner application with a Windows desktop client that also works as a full-featured standalone outliner and task manager. The Bonsai 5 Desktop Edition offers multiple views of a hierarchical outline: single-, dual- or triple-pane' and is a todo list manager in the office & productivity category. There are more than 50 alternatives to Natara Bonsai for a variety of platforms, including Web-based, Windows, iPhone, Android and Linux apps. The best Natara Bonsai alternative is Workflowy, which is free. Other great apps like Natara Bonsai are Dynalist, EssentialPIM, Taskade and Toodledo.