Notion

Notion combines documents, databases, task boards and wikis into one tool, organizing everything as nestable blocks.

Its strength is flexibility: the same dataset can be viewed as a table, board, calendar or gallery without syncing between separate apps. Individuals use it for notes and planning; teams use it for product documentation and project tracking.

The trade-off is a steeper learning curve — with so much freedom, workspaces get messy without deliberate structure. Starting from an official template and making one real workflow work before expanding is the usual advice. The free tier is sufficient for personal use.