Best Book Writing Apps in 2025

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

Open to write and follow the prompt suggestions, it's that easy. Good for poetry writing, journal writing, storytelling, narration, cinema, and more. All using a patented artificial intelligence technology.

Platforms: iPhone, iPad

Best for: Brainstorming, Story, Book, and Poetry

Website: https://apps.apple.com/us/app/creative-writing-prompts/id...

Also rated 4.6 ★ on the App Store

Capture what’s on your mind. Add notes, lists, photos, and audio to Keep.

Platforms: Online, iPhone, iPad, Android

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

Website: https://www.google.com/keep/

Also rated 4.0 ★ on TechRadar

Super-clean writing space with a lot of configurability that stays out of sight when you don’t need it.

Platforms: Mac, iPhone, iPad

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

Website: https://papereditor.app/

Also rated 4.2 ★ on the App Store

Reduce distractions, limit interruptions and complete tasks more efficiently – with Marinara online productivity timer.

Platforms: Online

Best for: Productivity, Book, Story, and Free

Website: https://www.marinaratimer.com/

Also rated 4.8 ★ on Google Play

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

An online writing app for novelists and storytellers

Platforms: Online, Chrome

Best for: Drafting, Book, Story, and Free

Website: https://thequill.app/

SSuite WordGraph is a free and very useful alternative to Microsoft's Word, OpenOffice's Writer, or anything else out there claiming to be the latest and greatest. You don't even have a need for .NET or even JAVA to be installed. This will save you a lot of hard drive space and precious computer resources.

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

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

Website: https://www.ssuiteoffice.com/software/wordgraph.htm

Black Note is the black theme's notepad. It's the simple notes app.

Platforms: Android

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

Website: https://play.google.com/store/apps/details?id=notepad.not...

Also rated 4.8 ★ on Google Play

Outline faster, organize smarter, and turbocharge your productivity today with the #1 visual book planning software for writers.

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

Best for: Outlining, Book, and Story

Website: https://plottr.com/

Also rated 3.0 ★ on Reedsy

Plot your next masterpiece with Pluot, the writing planner packed with features and there for you whenever inspiration strikes.

Platforms: Android

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

Website: https://pluotstudios.com/

Also rated 4.3 ★ on Google Play

Create beautiful handwritten notes, sketch your ideas, record audio, and organize your notes like never before.

Platforms: Mac, iPhone, iPad, Android

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

Website: https://www.noteshelf.net/

Also rated 4.4 ★ on the App Store