Comparisons, checked 17 October 2026

Onwarder vs Sudowrite

Q: What does Onwarder cost?

Writing is free. Cloud fixed prices: £8 a month or £79 a year in pounds sterling; €9 a month or €89 a year in euros; $10 a month or $99 a year in US dollars. Checkout confirms the currency.

An AI writing partner for fiction: it drafts, rewrites, describes and brainstorms, guided by a story bible.Source [1]

Sudowrite's checks and drafting are AI; Onwarder's continuity check is rule-based, needs no AI and no account, and AI stays optional.Source [1]Source [7]

Side by side.

Onwarder and Sudowrite, question by question
	Onwarder	Sudowrite
Price	Free for good, with no account. Cloud is $10 a month or $99 a year.	Hobby & Student $10 a month yearly or $19 monthly; Professional $22 or $29; Max $44 or $59.Source [2]
Runs on	On the web, Mac, Windows and Linux, with iPhone in beta, and Android coming.	Web, and iPhone and Android apps.Source [4]Source [5]
Writing with no connection	Books kept on your device open and save with no connection in the desktop and phone apps.	The iPhone and iPad app drafts offline.Source [4]
Story bible linked to the book	Characters, places, factions and items, a click from the page.	A Story Bible of characters, world, outline and style that guides generation.Source [6]
Checks the book against your notes	Built in, no AI: warns when a dead character acts or a lost item turns up again.	Chapter Continuity uses AI to compare chapters with the Story Bible.Source [7]
Ebook and paperback files	EPUB, Word, Markdown and PDF, and paperback interiors at three trim sizes.	Word export; the Story Bible is not included.Source [9]
AI, and training on your writing	Optional and off for every book. Bring your own. Never used to train AI.	AI drafting and revision. Sudowrite says it does not use your writing to train its own or OpenAI's AI models.Source [1]Source [10]
Getting your work out	Every book exports whole, at any time, on any plan.	Your projects live in its cloud; export as Word.Source [9]

Where Sudowrite is better

AI tools for alternative prose, rewriting and sensory description.Source [1]Source [4]Source [5]Source [6]Source [7]
Drafting guided by a persistent story bible and earlier chapters.Source [1]Source [4]Source [5]Source [6]Source [7]
Mobile apps with dictation.Source [1]Source [4]Source [5]Source [6]Source [7]

Choose Sudowrite if

You want AI to generate prose with you, and that is the main thing you are paying for.Source [1]

Choose Onwarder if

You want the story bible, recorded story events and a continuity check beside the manuscript, with no AI needed.
You want everything for writing free, on any computer or phone, with no account and no time limit.
You want the ebook and the paperback interior from the same place you wrote the book.

Try it with one chapter, free

Questions.

Can I move my book from Sudowrite?

Export it as a Word document and import that into Onwarder; it keeps chapters, headings, bold and italics. Start with a copy of one chapter, and keep your original until you are happy. We do not promise to carry over every other tool's notes, links or formatting.

Do I need AI to use Onwarder?

No. Writing, planning, the continuity check and Finishing all work without AI. If you connect your own AI, it is off for every book until you allow it, and Onwarder never uses your writing to train AI.

What does Onwarder cost?

Free for good, with no account. Cloud is $10 a month or $99 a year.

Sources, all opened 17 October 2026

Competitor prices are as shown on the linked pages, in US dollars where stated, before tax. Product names identify the tools compared and do not imply endorsement.

Product names are trademarks of their owners. Facts are from each maker's own pages, checked on the date shown. Spotted something out of date? Tell us and we'll fix it.