Best Book Writing Apps in 2026

Ever scribbled ideas on a piece of paper and drawn lines between related thoughts? Then you already know what Scapple does. It's a virtual sheet of paper that lets you make notes anywhere and connect them using lines or arrows.

Platforms: Mac, Windows, PC

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

Website: https://www.literatureandlatte.com/scapple/overview

Also rated 5.0 ★ 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/

A powerful writing tool from Reedsy. Write and export a beautifully typeset book. This is the beloved app made for authors, by authors.

Platforms: Online, Chrome

Best for: Outlining, Drafting, Editing, Proofreading, Publishing, Book, Poetry, Story, Free, and Worldbuilding

Website: https://reedsy.com/write-a-book

The simplest way to keep notes. All your notes, synced on all your devices.

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

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

Website: https://simplenote.com/

Also rated 4.0 ★ on TechRadar

The only online writing and editing platform that guides your hand based on data from real, bestselling books, AutoCrit is built to match the genuine demands of publishing professionals and discerning readers.

Platforms: Online

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

Website: https://www.autocrit.com/

Also rated 4.0 ★ on TechRadar

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 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

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

An online writing app for novelists and storytellers

Platforms: Online, Chrome

Best for: Drafting, Book, Story, and Free

Website: https://thequill.app/

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

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

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/