Best Book Writing Apps in 2025

Super-clean writing space with a lot of configurability that stays out of sight when you don’t need it.

Platforms: Mac, iPhone, iPad

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

Website: https://papereditor.app/

Also rated 4.2 ★ on the App Store

Polish & improve your novel. Identify word and phrase over-use. Monitor adverbs and clichés, crutch words and phrases. Improve sentence structure and punctuation.

Platforms: Windows, PC

Best for: Editing, Proofreading, Book, and Story

Website: https://smart-edit.com/

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/

With our writing tools you can track your progress thus far, plan your novel, write your novel and be able to focus on what matters for you the most: FINISHING THE DAMN BOOK!

Platforms: Android

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

Website: https://play.google.com/store/apps/details?id=net.ajp_gam...

Also rated 4.0 ★ on Google Play

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

Capture what’s on your mind. Add notes, lists, photos, and audio to Keep.

Platforms: Online, iPhone, iPad, Android

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

Website: https://www.google.com/keep/

Also rated 4.5 ★ on TechRadar

Remember everything and tackle any project with your notes, tasks, and schedule all in one place.

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

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

Website: https://evernote.com/

Also rated 4.4 ★ on the App Store

iWriter Pro is elegant and minimalist text editor with built-in MultiMarkdown support. Distraction-free and subscription-free.

Platforms: Mac, iPhone, iPad

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

Website: https://serpensoft.info/

Also rated 4.8 ★ on the App Store

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

Platforms: Mac, Windows, Online, PC

Best for: Outlining, Drafting, Book, and Story

Website: https://www.novel-software.com/

SSuite WordGraph is a free and very useful alternative to Microsoft's Word, OpenOffice's Writer, or anything else out there claiming to be the latest and greatest. You don't even have a need for .NET or even JAVA to be installed. This will save you a lot of hard drive space and precious computer resources.

Platforms: Windows, Mac, iPhone, iPad, Chrome, Android, PC

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

Website: https://www.ssuiteoffice.com/software/wordgraph.htm

Create beautiful handwritten notes, sketch your ideas, record audio, and organize your notes like never before.

Platforms: Mac, iPhone, iPad, Android

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

Website: https://www.noteshelf.net/

Also rated 4.4 ★ on the App Store

Most writers have at least one old notebook lying around somewhere, full of old story ideas, interesting characters, enchanting locations, or a myriad of other margin-scribbled thoughts. Notebook.ai is a worldbuilding tool that organizes, saves, and helps in fully fleshing out your fictional world, your way.

Platforms: Online, Chrome

Best for: Worldbuilding, Book, Story, and Free

Website: https://www.notebook.ai/