Best Book Writing Apps in 2026

Don’t stop typing. If you do all your work will disappear and be gone forever. Danger Notes is the ultimate writing tool to help fight writer’s block. Whether you are writing a term paper, an essay, a book, your best-man speech, promising rap lyrics or just free writing, Danger Notes will help you fight writer’s block by forcing you to keep writing in order to save your progress from being deleted.

Platforms: iPhone, iPad

Best for: Note-taking, Book, Story, Essay, Journal, Poetry, Blog, and Free

Website: http://swivelapps.com/apps-by-david/dangernotes.html

Also rated 4.8 ★ on Capterra

Don't let your word processor drag your process down. Ironically enough, traditional word processors weren’t designed for writers. Dabble’s book-writing software was developed for writers, by a writer.

Platforms: Mac, Windows, Chrome, PC

Best for: Drafting, Book, and Story

Website: https://www.dabblewriter.com/

The Novel Factory helps guide new writers through the novel writing process - while completing your first manuscript.

Platforms: Mac, Windows, Online, PC

Best for: Book, Drafting, Outlining, and Story

If you write thrillers, romance, mysteries, fantasy, sci-fi, young adult, horror or one of a thousand other subgenres, we’d like you to meet our fiction-loving A.I., Marlowe. She can read and critique your work with a comprehensive 36-page report in a matter of minutes and deliver fascinating, actionable insights.

Platforms: Online

Best for: Book, Editing, and Story

Website: https://authors.ai/marlowe/

Made by writers, for writers, Novlr is the writing platform that will have you achieving your writing goals.

Platforms: Online

Best for: Drafting, Book, Story, and Free

Website: https://www.novlr.org/

Also rated 3.0 ★ on Reedsy

Stuck in front of a blank page? Need a boost of inspiration? Join us to overcome blocks and push your creativity to the max. With Writing Challenge, you will brainstorm new and fresh ideas and embrace freewriting in the funniest way ever.

Platforms: iPhone, iPad, Mac, Android

Best for: Brainstorming, Story, Book, and Poetry

Website: https://www.writingchallengeapp.com/

Also rated 4.4 ★ on the App Store

Traditional word processors include dozens of options for formatting text, distracting you from what really matters: writing. Calmly Writer is an editor designed to focus on what you want to tell, with a simple, unobtrusive and ease-to-use user interface.

Platforms: Windows, Mac, Online, Chrome, PC

Best for: Drafting, Book, Essay, Journal, Poetry, Story, Blog, and Free

Website: https://www.calmlywriter.com/

Also rated 4.0 ★ on TechRadar

Every character has stories and every World has histories. Planning and building a story cannot be easier with the help of this app. It helps the writer planning the story and the development of characters, relations, groups, races, creatures, etc.

Platforms: Android

Best for: Worldbuilding, Book, Story, and Free

Website: https://play.google.com/store/apps/details?id=lfantasia.n...

Also rated 3.9 ★ on Google Play

Whatever kind of writer you are, ProWritingAid will help you improve your writing and get your ideas across more clearly. Our grammar and style checker contains over 3,000 explanations and videos written by our experts, so you don't need to remember all those crazy rules.

Platforms: Mac, Windows, Online, PC, Chrome

Best for: Drafting, Editing, Proofreading, Book, Essay, Story, Blog, and Free

Website: https://prowritingaid.com/

Also rated 4.5 ★ on Reedsy

Write without distractions. WriteRoom is a full screen writing environment. Unlike the cluttered word processors you're used to, WriteRoom lets you focus on writing.

Platforms: Mac

Best for: Drafting, Book, Story, Journal, Essay, Blog, and Poetry

Website: https://apps.apple.com/us/app/writeroom/id417967324?mt=12

Also rated 3.6 ★ on the App Store

A tool for thoughtful writing. See your work in new ways, think with an integrated concept map, and export with an automatic reference section, all in a distraction free environment.

Platforms: Mac

Best for: Drafting, Book, Story, Essay, and Free

Website: https://www.augmentedtext.info/author

Also rated 4.4 ★ on TechRadar

Manuskript is a perfect tool for those writer who like to organize and plan everything before writing. The snowflake method can help you grow your idea into a book, by leading you step by step and asking you questions to go deeper.

Platforms: Mac, Windows, PC

Best for: Outlining, Story, Book, and Free

Website: https://www.theologeek.ch/manuskript/