Best Book Writing Apps in 2025

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

So, You’re looking to write a book. Well, wavemaker is here to help. It’s much much more than a text editor.

Platforms: Mac, Windows, Chrome, Android, Online, PC

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

Website: https://wavemaker.cards/

Also rated 3.7 ★ on Google Play

WriteItNow is designed to help anyone writing a novel. Keep the novel text and all the background information in one place. Each novel is saved in a single file, and the program has two main sections: one for chapters and scenes and the other for background details

Platforms: Windows, Mac, PC

Best for: Drafting, Book, and Story

Website: https://www.ravensheadservices.com/about.html

Create ebooks for every platform: Kindle, Kobo, Apple Books, and more. Each specialized file can guide readers to buy your next book in their favorite store.

Platforms: Mac

Best for: Publishing, Story, and Book

Website: https://vellum.pub/

Also rated 3.0 ★ on Reedsy

Note down, shape, & share your ideas with the world's best loved digital paper. Fall in love with handwriting all over again with Goodnotes’ digital ink.

Platforms: Mac, iPhone, iPad

Best for: Outlining, Drafting, Book, Story, Journal, and Poetry

Website: https://www.goodnotes.com/

Also rated 4.8 ★ on the App Store

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/

Campfire is a versatile writing tool organized into modules, each one offering a different type of story element you can create. Keep track of each character's motives, history, eye color, and more. The Characters Module gives you an easy way to make quick notes or detailed character sheets about anyone in your story. Upload your map to the Maps Module, add pins to integrate it with the rest of your story, and nest other maps to keep things organized.

Platforms: Mac, Windows, Online, PC

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

Website: https://www.campfirewriting.com/

Also rated 4.0 ★ on Reedsy

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 4.5 ★ on TechRadar

Story Planner is an easy-to-use and yet powerful tool for plotting novels, screenplays, and any fiction story. It works great for writers, screenwriters, producers, directors, RPG masters … All kinds of storytellers!

Platforms: iPhone, iPad

Best for: Outlining, Drafting, Story, and Book

Website: https://apps.apple.com/us/app/story-planner-outline-your-...

Also rated 4.7 ★ on the App Store

FocusWriter is a simple, distraction-free writing environment. It utilizes a hide-away interface that you access by moving your mouse to the edges of the screen, allowing the program to have a familiar look and feel to it while still getting out of the way so that you can immerse yourself in your work.

Platforms: Windows, PC

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

Website: https://gottcode.org/focuswriter/

Also rated 4.0 ★ on TechRadar

Hemingway makes your writing bold and clear. It's like a spellchecker, but for style. It makes sure that your reader will focus on your message, not your prose.

Platforms: Windows, PC, Mac

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

Website: https://hemingwayapp.com/

Also rated 4.0 ★ on Reedsy

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