Notion is a project management and note-taking software. Notion is software designed to help members of a company or organization coordinate deadlines, objectives, and assignments for the sake of efficiency and productivity. Notion is used by Fortune 500 companies such as Spotify, The Walt Disney Company, and Samsung Electronics.
In essence, it is a tool that can be used to organize your thoughts, projects, and information. It describes itself as an "all-in-one workspace" that includes your notes, tasks, wikis, and databases. To me, this meant a tool that gave me flexibility in tracking projects and data.
It is highly customisable, intuitive and can be completely free!