Orgro

Live your life in Org Mode? Take it with you on your Android device.GPL-3.0-only

Orgzly

Outliner for notes and tasks in plain-textGPL-3.0-or-later

Orgzly Revived

Outliner for taking notes and managing to-do listsGPL-3.0-or-later

MobileOrg

TODO list/task managementGPL-3.0-only

Logseq

A privacy-first, open-source platform for knowledge management and collaborationAGPL-3.0-only