Hide and Seek: Lost Books
A Sudoku-style puzzle game
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
A cozy logic puzzle game for book lovers.
Love Sudoku, Picross, Nonograms, or logic-grid puzzles? You’ll feel right at home.
USE LOGIC TO FIND EVERY BOOK
Each puzzle follows simple rules:
• One book belongs in every row, column, and colored region
• No two books can touch, not even diagonally
• Mark empty spaces, place books, and solve step by step
• Every puzzle is designed to be solvable by logic alone — no guessing required
Quick boards are perfect for a short break. Harder boards offer a satisfying challenge in about a minute or less.
COZY, CALM, AND BEAUTIFULLY MADE
• Difficulty that grows with your skill
• Relaxing, low-pressure play
• Calm piano background music
• Offline play anytime, anywhere
• Perfect for a quiet moment with tea, coffee, or before bed
UNLOCK QUOTES FROM GREAT LITERATURE
Every completed puzzle reveals a new quote from classic literature and timeless writing.
Discover lines inspired by:
• Shakespeare
• Jane Austen
• Emily Dickinson
• Thoreau
• Emerson
• Rumi
• Walt Whitman
• Marcus Aurelius
• Mark Twain, Charles Dickens, Herman Melville, and many more
Build your collection as you play.
For fans of: Sudoku · Picross · Nonograms · Kakuro · logic puzzles · cozy games
A quiet puzzle. A beautiful quote. A library waiting to be discovered. Curl up and get started.
End User License Agreement
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Bug fixes & improvements
Subscriptions
The developer, Ten October LLC, 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 Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Ten October LLC
- Size
- 70.5 MB
- Category
- Puzzle
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- Lost Books Ad Free: Monthly $2.99
- Copyright
- © 2026 Ten October LLC