Evernote is a note management application that offers you a single place for the organization, easy input and quick retrieval of all types of notes and clippings.
TreeSheets combines spreadsheet tools, mind mappers, outliners, personal information managers, text editors and small database utilities into an all-in-one office application.
WatchMe is a feature-rich timer program that can be used to track time for a number of different tasks or events together or independently of one another.
Cherrytree for Windows, macOS, and Linux is a free hierarchical note-taking application featuring rich text and syntax highlighting, storing data in a single XML or SQLite file. Zero-dependency portable version is also available.
RedNotebook Portable provides a modern journal with calendar navigation, customizable templates, export functionality, word clouds, and more. Available as an installer.
VOVSOFT Tree Notes is an application for taking hierarchical notes designed to improve organizational efficiency and streamline information management.