Writing

Guileless Bopomofo
A simple Bopomofo software keyboard (input method editor) for typing Hanyu

Notes
Notebook with markdown formatting

Editor
Simple generic text editor

Diary
Personal diary or journal

OCR
OCR based on Tesseract 4

Notally
A simple and elegant open source notes app

Notepad
A simple, bare-bones, no-frills note taking app

Puzzle Grid
An app for drawing grids for select types of puzzles.

Easy Diary
A diary application optimized for user experience

Nextcloud Notes
View and edit notes on Nextcloud

Simple Keyboard
Simply keyboard and nothing more

Tasks
Fork of Astrid Tasks & To-Do List

Como
A game that helps to create better descriptions for words

Contact Diary
Keep track of the people you have recently been with

MoasdaWiki App
App to synchronize data from MoasdaWiki Server.

Noteless
A markdown note-taking app for mobile devices.

Keyboard Switcher
Keyboard Switcher, several ways to easily change the keyboard

World Scribe
Help story writers with fictional world-building

Silinote
Single line notes

boQwI'
Lexicon dictionary for the Klingon language

Markor
Text editor - Notes & ToDo. Lightweight. Markdown and todo.txt support.

Irregular Expressions
Virtual keyboard for writing expressive messages in various font styles

Full colemak
Keyboard with International Colemak layout

Fast Shopping
Simple app for easy shopping list making, developed with simplicity in mind.

SimpleTextEditor
Simple Text Editor

Carnet
Powerful note taking app with sync and online editor

Poet Assistant
Dictionary and TTS tools for editing poems

OpenBoard
An opensource keyboard that does not spy on you!

Kolab Notes
Write notes and sync them with Kolab

Indic Keyboard
AOSP Keyboard with Indic language support