Focus-writer is a free word processing software with writing specific features. It has a writing timer, daily goals, and tracks words, pages, paragraphs, and characters.
From grammar and spelling to style and tone, Grammarly helps you eliminate errors and find the perfect words to express yourself.
Scribus is an open access desktop publishing software program that is reliable and free. it comes in two versions, the stable version and the development version. Since the development version is constantly being tweaked for improvement, the stable version is recommended.
Scrivener is the go-to app for writers of all kinds. You can sign up for a free trial.
SmartEdit is a free app for novel and short story writers.