Binairo vs Suguru

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. And when you get stuck, the hint tells you why a cell is decided, not just what goes there. A calm, Japanese-inspired design makes a few minutes a day feel like a quiet reset. ◆ THREE THINGS TO KNOW • Free to start, no subscription (one-time purchase only) • No third-party ads (only promotions for our own other apps) • Your records stay on your device (no account, nothing uploaded) ■ HOW TO PLAY Put a 0 or a 1 in every cell, following three rules: • Never three of the same number in a row or column • Each row and column has equal 0s and 1s • No two rows and no two columns are identical ■ FEATURES • Every puzzle has exactly one solution (checked in-app before it's shown) • Four levels: Easy 6x6, Medium 8x8, Hard 10x10, Expert 12x12 • Daily puzzle: everyone plays the same one, with streaks and a calendar • Two styles: numbers (0/1) or two-color stones • Mistake highlighting, remaining counts, undo, and clear all • Explained hints that tell you the rule behind each move • Stats for solves, best times, and no-hint rate, plus 10 badges • Japanese-inspired board themes • A short, hands-on tutorial for first-timers ■ GREAT FOR YOU IF… • You love Sudoku and want a fresh logic puzzle • You prefer clean deduction over guessing • You want to learn the reasoning, not just get the answer • You want a calm mental break on the commute or before bed • You enjoy apps with a quiet, minimal look ■ PRIVACY • No account or sign-up • Puzzles are generated on your device, and you can play offline • Your records stay on your device and are never uploaded • No data collection • To show our other apps, Binairo loads public App Store info (names and icons)

One grid. Two rules. No guessing. Suguru is the daily logic puzzle for people who love newspaper puzzles: a grid divided into cages, two simple rules — and a depth that grows with every difficulty level. ONE GRID, TWO RULES • A cage with four cells holds the numbers 1 to 4. • Equal numbers never touch — not even diagonally. Every puzzle has exactly one solution and can be solved by pure logic. Guaranteed: every single puzzle is machine-checked before it reaches you. THE DAILY PUZZLE A new puzzle every day, as a quiet anchor: gentle on Mondays, the big master puzzle on Sundays. Your streak counts the days — and generously forgives one missed day per month. The widget brings the daily puzzle to your home screen. HINTS THAT EXPLAIN Suguru doesn't just give away answers. Hints unfold in three stages: first where to look, then why only one number fits. Placing it is up to you. That's how you get better with every puzzle. LIKE A PAPER PUZZLE BOOK Warm paper tones, refined serif typography, subtle sounds and haptics. No confetti, no flashing — just a golden moment when everything fits. With the Paper, Midnight and Sepia themes. YOUR STATISTICS The almanac collects solved puzzles, best times and your daily-puzzle history in a monthly view — no account needed, everything stays on your device. ALWAYS FREE • The daily puzzle — every day, forever • 10 library puzzles in each of the five difficulty levels • 3 hints per puzzle and full statistics SUGURU UNLIMITED — ONE PURCHASE, NO SUBSCRIPTION • Unlimited puzzles across five levels, from Gentle (5×5) to Master (9×8) • The complete daily puzzle archive • Unlimited hints • Two extra themes and the golden app icon One-time purchase. Family Sharing included. NO ADS. NO TRACKING. Suguru shows no ads, collects no data and needs no account. Your only subscription is the habit. Suguru is also known as Tectonic. Optimized for iPhone and iPad, with VoiceOver and Dynamic Type support.