Your book can be unforgettable.
Koobia finds the strength already in your manuscript, reveals what still keeps it from surprising readers and follows every new version. You keep the voice and decide how far the story goes.
Review manuscriptAI widens the view. Your voice stays yours.
Does the story work?
Do the characters convince?
Will the book find its reader?
How far can your story go?
Assessment, revision, preparation and launch in one place. At your own pace, choose only what suits your book’s current stage; scope and pricing are shown before confirmation.
Editorial assessment
Initial and full reviews by specialist personas, with evidence, strengths, risks, and priorities. After a new version, checks can focus on previously raised points instead of repeating the full assessment.
Character and dialogue psychology
Examine emotional consistency, motivation, relationships, subtext, and distinct voices. Findings point to manuscript scenes and dialogue without imposing a single interpretation.
Feedback from three reader profiles
Consider young, adult, and experienced readers’ perspectives on clarity, pacing, engagement, and audience fit as qualitative signals, not a promise of sales.
Structure and narrative journey
Examine progression, causality, pacing, character arcs, and information flow to understand how the story carries readers through the book.
Commercial analysis
A commercial persona assesses positioning, audience, reading promise, and market potential, distinguishing evidence from hypotheses and never promising sales.
Copyediting and language review
Check spelling, grammar, punctuation, syntax, fluency, and consistency without substantive rewriting of the work.
Revision and continuity review
Check names, timelines, locations, world rules, clues, and subplots to find contradictions or continuity breaks across the manuscript.
Synopsis, metadata, and SEO
Prepare a spoiler-conscious synopsis, audience and age guidance, PUI and market sheets, plus the title, description, and keywords for a book page.
Cover creation
Generate three visual proposals guided by the book and marketing assessment. Choose styles, characters or a specific scene, and add your notes.
Translations with quality checks
Create other-language versions chapter by chapter, with checkpoints and automated translation checks before the final file is assembled.
Final book proof
Generate a typeset EPUB with cover, navigable table of contents, separate chapters, end glossary, and server-side technical validation.
Marketing and launch plan
Get practical campaigns with channels and placements, ad formats, audience, region, interests, creative concept, call to action, and metrics.
Character profiles with photos
Organize character profiles, motivations and relationships, with optional portraits.
Chapter dossiers
Map each chapter with a summary, time, setting, characters, conflict and hook, with optional illustrations.
Extra images
Generate new character portraits and chapter scene images to complement your book materials.
AI-assisted writing
Get writing support with the ghostwriter service and review the result while keeping control of authorial decisions.
Audiobook
Generate the complete audiobook or only the selected chapters, using library voices or your own cloned voice.
Book Trailer
Create a trailer for the complete book or selected chapters, with your chosen duration, format and characters.
Video
Generate a promotional video with a free-form prompt and the duration you prefer.
Your manuscript remains yours alone.
It stays in your private workspace and is accessed only through the authenticated application. Koobia does not publish or distribute your work. Each tool processes only the content needed for the task you choose.
Access only with permission
Your files have no public links. The application checks your session and account permissions before showing the content.
Every task has a purpose
Content is used to run the tool you started. The complete rules are in the privacy policy.
Authorship stays in your hands
Koobia does not take publishing rights to your work. You choose what to revise and can export your content.
Specialists, not generic answers
Each assessment brings a specific editorial specialty. You receive evidence, decide what to change and remain the author.
AI widens the view. Your voice stays yours.
Koobia does not write for you. It analyzes, compares perspectives and shows evidence so your editorial choices are better informed. You revise, decide and remain the author. Assisted writing, when available, is optional and limited to what you select. AI can make mistakes; reports make this clear and are never presented as human reading.
No leap in the dark.
Free first reading
Three free assessments per account. Each completed paid critical review unlocks three more free assessments. The same manuscript never receives another free assessment through a different account.
No surprise charges
You see the scope, deliverables and total price before confirming any service.
Specific prices are shown in the product before any charge.
No promises. Just clear decisions.
Does Koobia publish or distribute my book?
No. The platform supports editorial development. Publication decisions and channel selection remain with the author.
Is the assessment done by a person?
No. AI does not write or replace your authorship. Specialist personas point to evidence-based opportunities; you decide and revise the text. They then recheck those points in the new version.
Can I delete my manuscript?
Yes. You can delete works and your account. Active manuscript and editorial content are promptly removed; backups expire within 90 days. Required accounting records may have separate legal retention.
The best version is still ahead.
Create your account, upload your manuscript and discover what is already strong and what can take your work further.
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