Total Organizer is described as 'personal information manager that stores all your contacts, tasks, notes, and todo items. You can classify the items under a hierarchical tree structure, but each item (be it a contact, task, note or todo) may belong to more than one category' and is an app in the Office & Productivity category. There are more than 100 alternatives to Total Organizer for a variety of platforms, including Windows, Android, iPhone, Online / Web-based and Mac. The best alternative is Joplin. It's not free, so if you're looking for a free alternative, you could try Standard Notes or Evernote. Other great apps like Total Organizer are Simplenote (Free, Open Source), CherryTree (Free, Open Source), Zoho Notebook (Free Personal) and Remember The Milk (Freemium).
Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organised into notebooks. The notes are searchable, can be copied, tagged and modified either from the applications directly or from your own text editor.
Take your tasks anywhere with this feature-packed application. See tasks located nearby, add and complete tasks on the go, organize upcoming tasks, and sync it all seamlessly with Remember The Milk. Desktop app available for Pro users. Very good integration in GMail!
A simple but effective way to keep on top of your tasks, 10 languages. ToDoList is a rare form of task management tool, one that allows you to repeatedly sub-divide your tasks into more manageable pieces whilst still presenting a clean and intuitive user experience.