Best Book Writing Apps in 2026

Writer Assistant (Wassi) is an application created specifically for inventors! We all constantly invent new characters for our stories, be it a comic, a novel, a script, a play, or a game. And so that our characters are alive and riveted the attention, they need to be developed a lot! That is what the Writer Assistant was created for! Plus, with Wassi you can easily outline your stories on the go.

Platforms: Mac, iPhone, iPad

Best for: Outlining, Book, Story, and Free

Website: https://apps.apple.com/app/writer-assistant-wassi/id14686...

Also rated 3.9 ★ on the App Store

You have a story to tell, article to publish, or class notes to take. Scrivo Pro can help you organize your writing, research, generate ideas, and remove distractions so you can focus on the most important thing: writing.

Platforms: Mac, iPhone, iPad

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

Website: https://apps.apple.com/us/app/scrivo-pro-for-scriveners-a...

Also rated 4.4 ★ on the App Store

Freedom blocks distractions across all your Mac, Windows, Android, iOS, and Chrome devices so you don’t have to fight off the temptation of distracting pings, notifications, headlines, and emails.

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

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

Website: https://freedom.to/

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/

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

Scrivener is the go-to app for writers of all kinds, used every day by best-selling novelists, screenwriters, non-fiction writers, students, academics, lawyers, journalists, translators and more.

Platforms: Mac, Windows, iPhone, iPad, PC

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

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

Also rated 4.0 ★ on Reedsy