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 — 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 of $7.99 — no subscription. Family Sharing included. No ads, no tracking, 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.

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