Unus Liber: AI Book Writer
Turn Your Story Into a Book
Free · In‑App Purchases
Turn a memory or idea into characters, a connected plot, and a chapter-by-chapter manuscript with an AI writing partner that keeps you in control.
Unus Liber helps anyone turn a memory, idea, or unfinished draft into a structured story and a complete manuscript—even without formal writing experience.
Start by choosing a genre and book format. A guided AI interview discovers the people, setting, conflict, and feeling at the heart of your idea. Unus Liber then proposes three distinct story directions and builds a connected Story Bible, character profiles, world notes, master plot, and chapter outline.
WRITE ONE CHAPTER AT A TIME
Every chapter has its own AI writing agent. Continue the next scene, expand a moment, strengthen dialogue, or polish the voice without replacing work in other chapters. You can always edit the manuscript directly.
KEEP THE STORY CONNECTED
Plot beats are linked to their chapters. Changes to characters, settings, and plot events can be reviewed across the project so your manuscript stays coherent as it grows.
MAKE IT YOUR BOOK
Choose a trim size, cover, manuscript font, and text size. Save manually or enable one-minute autosave. Preview the finished work as a page-turning book and export your manuscript with the native iOS share sheet.
SUPPORTED FORMATS
• Memoir and autobiography
• Essay and personal nonfiction
• Literary and general fiction
• Romance
• Fantasy
• Mystery and thriller
• Short screenplay
• Continue an unfinished draft
YOUR STORY, YOUR DECISION
Unus Liber does not publish your work automatically. Projects are private by default, AI suggestions remain editable, and you decide what to keep, revise, export, or share.
AI output may contain errors and should be reviewed before publication or commercial use.
TERMS OF USE
Apple Standard Terms of Use (EULA):
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
- This app hasn’t received enough ratings or reviews to display an overview.
This update improves social sign-in reliability and session recovery while keeping the Unus Liber experience unchanged for English-language users.
The developer, AIOD Co.,Ltd, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Purchases
- Financial Info
- Contact Info
- Contacts
- User Content
- Search History
- Browsing History
- Identifiers
- Usage Data
- Diagnostics
- Body
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- AIOD Co.,Ltd
- Size
- 4.6 MB
- Category
- Productivity
- Compatibility
Requires iOS 14.0 or later.
- iPhone
Requires iOS 14.0 or later. - iPad
Requires iPadOS 14.0 or later. - iPod touch
Requires iOS 14.0 or later. - Mac
Requires macOS 11.0 or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English and Korean
- Age Rating
13+
- 13+
- Infrequent
Cartoon or Fantasy Violence
Realistic Violence
Profanity or Crude Humor
Mature or Suggestive Themes
Horror/Fear Themes
Alcohol, Tobacco, Drug Use or References
Guns or Other Weapons
- In-App Purchases
Yes
- Max Professional $59.99
- Pro Plan $7.99
- Copyright
- © 2026 AIOD