Best Book Writing Apps in 2025

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/

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 4.5 ★ on TechRadar

FreeOffice 2021 is a complete Office suite with a word processor, a spreadsheet application and a presentation program – all seamlessly compatible with their counterparts in Microsoft Office.

Platforms: Mac, PC, Windows

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

Website: https://www.freeoffice.com/en/

Also rated 4.0 ★ on TechRadar

Join (probably?) the world's largest writing contest. Flex those creative muscles with weekly writing prompts.

Platforms: Online

Best for: Drafting, Book, Story, and Free

Website: https://blog.reedsy.com/creative-writing-prompts/

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 4.5 ★ on TechRadar

Ginger is more than a grammar checker, spell checker, and punctuation checker. Ginger is an all-in-one writing tool that includes Rephrase to empower you to write your best in ways that traditional online grammar checkers can’t.

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

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

Website: https://www.gingersoftware.com/

Also rated 4.6 ★ on the App Store

Don't let your word processor drag your process down. Ironically enough, traditional word processors weren’t designed for writers. Dabble’s book-writing software was developed for writers, by a writer.

Platforms: Mac, Windows, Chrome, PC

Best for: Drafting, Book, and Story

Website: https://www.dabblewriter.com/

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, and Free

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

Also rated 4.6 ★ on Trustpilot

Create ebooks for every platform: Kindle, Kobo, Apple Books, and more. Each specialized file can guide readers to buy your next book in their favorite store.

Platforms: Mac

Best for: Publishing, Story, and Book

Website: https://vellum.pub/

Also rated 3.0 ★ on Reedsy

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/

Every character has stories and every World has histories. Planning and building a story cannot be easier with the help of this app. It helps the writer planning the story and the development of characters, relations, groups, races, creatures, etc.

Platforms: Android

Best for: Worldbuilding, Book, Story, and Free

Website: https://play.google.com/store/apps/details?id=lfantasia.n...

Also rated 3.9 ★ on Google Play

The best outlining app for your best work. Where brilliant ideas are captured, fleshed out, and realized.

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

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

Website: https://dynalist.io/

Also rated 4.2 ★ on Google Play