Best Book Writing Apps in 2026

The human brain is non-linear: we jump from idea to idea, all the time. Your second brain should work the same. In Obsidian, making and following connections is frictionless. Tend to your notes like a gardener; at the end of the day, sit back and marvel at your own knowledge graph.

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

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

Website: https://obsidian.md/

Also rated 4.0 ★ on TechRadar

Notes are just the beginning. Create and annotate anything, from study guides to storyboards. We've got an intuitive, minimal interface for you to start in seconds.

Platforms: Mac, iPhone, iPad

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

Website: https://notability.com/

Also rated 4.7 ★ on the App Store

Storyline Creator is an elegant writing tool that helps you streamline your writing process. It's incredibly fun to draft ideas, to visualize, enhance and organize your stories - so you can focus on your plot and the creativity instead of the paper war.

Platforms: Online

Best for: Outlining, Book, Story, and Free

Website: https://www.storylinecreator.com/

Still looking for the perfect app to write your novel? Novelist might just be the perfect tool for the job!

Platforms: Android, iPhone, iPad, Online

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

Website: https://www.novelist.app/

The Internet's best write-reward system! Write one hundred words, get an image of a kitten!

Platforms: Online

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

Website: https://writtenkitten.co/

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

Do you have a story to tell? Unlike conventional word processors, Storyist helps you track your plot, characters, and settings, and keeps all of your writing organized and accessible—so you can focus on telling your story.

Platforms: Mac, iPhone, iPad

Best for: Outlining, Drafting, Book, and Story

Website: https://storyist.com/

Also rated 4.0 ★ on PC Magazine

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

Hanx Writer expands recreating the permanence of a typewriter with the convenience of your iPad and iPhone. As ever, the report of SHOOK SHOOK and KLOCK-KLOCK is mated with the luxuries of the DELETE key.

Platforms: Mac, iPhone, iPad

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

Website: http://hanxwriter.com/

Also rated 3.7 ★ on the App Store

Publisher Rocket will help you get your book in front of more Amazon shoppers so you can spend less time marketing and more time writing.

Platforms: Online

Best for: Publishing, Book, and Story

Website: https://publisherrocket.com/

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/

With Scrittor store all your ideas, thoughts and whatever your mind tells you.

Platforms: Android, Chrome

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

Website: https://play.google.com/store/apps/details?id=com.shahid.nid

Also rated 4.4 ★ on Google Play