Best Book Writing Apps in 2025

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/

Gingko is a new kind of tool, that lets you shape your ideas with lists, outlines and cards, all in the same clean interface.

Platforms: Online

Best for: Outlining, Essay, Book, Story, and Blog

Website: https://gingkowriter.com/

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

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

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

Compose bold, clear, mistake-free writing with Grammarly. Work with an AI writing partner that helps you find the words you need⁠—⁠to write that tricky email, to get your point across, to keep your work moving.

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

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

Website: https://www.grammarly.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 4.5 ★ on TechRadar

Track your progress. Stay accountable. Finish your drafts.

Platforms: Online, Chrome

Best for: Drafting, Book, and Story

Website: https://www.writinganalytics.co/

Start your book, plot your book, write your book, organize your book, and export it for publishing all in one place. Leave your word processor in the dust.

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

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

Website: https://livingwriter.com/

Also rated 3.5 ★ on the App Store

Notes is the best place to jot down quick thoughts or to save longer notes filled with checklists, images, web links, scanned documents, handwritten notes, or sketches. And with iCloud, it's easy to keep all your devices in sync, so you’ll always have your notes with you.

Platforms: Mac, iPhone, iPad

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

Website: https://apps.apple.com/us/app/notes/id1110145109

Also rated 3.3 ★ on the App Store

Create professional print books and eBooks easily with the all-in-one book writing software.

Platforms: Mac, Windows, Chrome, PC

Best for: Drafting, Publishing, Book, and Story

Website: https://www.atticus.io/

A focused environment where you can write freely. With iA Writer, you can gain unparalleled insight into your writing structure, detect superfluous words and clichés, and navigate through your documents and notes with ease.

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

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

Website: https://ia.net/writer

Also rated 4.0 ★ on PC Magazine