Free Novel Writing Software:

• Google Docs ⚠️ Possible Privacy Issue
• Proton Docs: A privacy friendly Google Docs alternative.
• yWriter A writing program created by an author.
• Joplin Open source alternative to Evernote
• Highland
• Wave Maker
• FocusWriter
• LibreOffice MS Office alternative
• Obsidian Technically free, with the exception of being able to sync between devices using their servers. There are many community created plug-in's for customization.

Screenwriting Focused:

• Slugline
• Scriptorium (Linux only): "Scriptorium is a text editor coupled with a planning tool and a publishing tool. The objective is to provide writers with a simple and complete environment to plan, write and publish e-books."

Phone Apps:

• Pause For
• Obsidian Technically free, with the exception of being able to sync between devices using their servers. There are many community created plug-in's.
• Joplin Open source alternative to Evernote
• Quillpad A markdown based note taking app

Paid Novel Writing Software

• Freedom App
• Scrivener
• NovelPad
• Plottr
• Atticus
• Notion
• Living Writer
• Squibler
• Plot Factory
• 4TheWords Online Writing RPG

Phone Apps:

• Forest