Task Coach - Task Coach is a simple open source todo manager to keep track of personal tasks and todo lists.
OneNote - Get the OneNote app for free on your tablet, phone, and computer, so you can capture your ideas and to-do lists in one place wherever you are. Or try OneNote with Office for free.
Flashnote - Flashnote is a quick notes manager
Notification Notes - Notification Notes is a simple note taking Android app that lets you display your notes as native Android notifications - khuttun/NotificationNotes
Tot - Convert any text into a Trello task
Obsidian - GraphQL caching tool for the Deno runtime environment