Alternatives to OmniOutliner

App to write, plan, collaborate, and get organised

Note taking app

Note taking and to-do application with synchronisation capabilities

App for note taking, organising, task lists, and archiving

Privacy-first, open-source platform for knowledge sharing and management

Native document editor

Notetaking tool

Hierarchical note taking application

Note editor and whiteboard

Scheduling application focusing on organisation

Personal knowledge management and note-taking app

Digital note taking app