Binairo - Binary Logic Puzzle
Daily binary logic puzzles
Only for iPhone
Free · In‑App Purchases
iPhone
Only three simple rules. Fill the grid with 0s and 1s — no luck, no math. Every puzzle has exactly one solution, so pure logic always gets you there. New daily challenge.
Fill the grid with 0s and 1s. Just three simple rules.
Binairo — also known as Takuzu or Binary Puzzle — is pure logic. No luck, no math.
A calm, beautifully minimal way to sharpen your mind, anytime, anywhere.
■ How to play
Put a 0 or a 1 in every cell. Follow three rules and fill the whole board:
- Never three of the same number in a row or column
- Each row and column has an equal count of 0s and 1s
- No two rows and no two columns are identical
No prior knowledge needed — most people are playing within minutes.
■ Features
- Always solvable by logic: every puzzle is verified in-app to have exactly ONE
solution, so you never have to guess.
- Four difficulties: from a gentle 6x6 to a demanding 12x12.
- Daily Challenge: everyone plays the same puzzle each day, with streaks and a
calendar to keep the habit going.
- Two display styles: numbers (0/1) or two-color stones — your choice.
- Gentle assists: mistake highlighting, remaining counts, undo, and hints.
- Fully offline: play anywhere, even with no signal.
- Private by design: your records stay on your device.
■ Great for you if…
- You've mastered Sudoku and want your next logic fix
- You love pure logic with zero luck involved
- You're tired of cluttered, ad-heavy, subscription puzzles
- You want a calm mental reset on the commute, on a break, or before bed
- The idea of 0s and 1s makes you smile
■ Privacy & peace of mind
- No account or sign-up required.
- No servers, no cloud — the app is fully offline.
- Your play records are stored only on your device and are never uploaded.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, torankirite, 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 Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- torankirite
- Size
- 3.7 MB
- Category
- Puzzle
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later.
- iPhone
- Languages
- English and Japanese
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- Premium $4.99
- Copyright
- © 2026, Torankirite