# Suguru: Number Logic Puzzle — Guess-free tectonic brain game

> Guess-free tectonic brain game (iPhone/iPad app by torankirite.)

- Source: https://appshunter.io/ios/app/suguru-number-logic-puzzle/id6788644566 (this page in markdown: same URL + `.md`)
- Developer: [torankirite](https://appshunter.io/developer/1883564850)
- Category: Games, Education, Board, Puzzle
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 1 MB
- Languages: English, Japanese
- Released: 2026-07-14
- Data updated: 2026-08-06
- User reviews in markdown: https://appshunter.io/ios/app/suguru-number-logic-puzzle/id6788644566/reviews.md

## What is Suguru?

Place a number in every little room.
The same number can never touch — not up, down, across, or diagonally.
That's the whole rule. And it runs surprisingly deep.

Suguru (also known as Tectonic) is a number-logic puzzle played on a grid split into rooms. A room of size n holds 1…n, once each. And no two matching numbers may sit next to each other in any of the eight directions. That one twist — no diagonal neighbours either — gives Suguru a softer, different feel from sudoku.

Best of all, every Suguru here comes with one promise: it's always solvable by pure logic, with no guessing. No placing a number on a hunch and watching it all collapse. Just the quiet satisfaction of narrowing things down, one certain square at a time.

■ Features
A logic rule all its own: no matching neighbours, diagonals included
Every puzzle solvable by logic — zero guessing, never stuck
Four sizes: 5×5, 6×6, 7×7, 8×8
A fresh Daily puzzle, with a solving streak
Pencil notes, hints, and undo
Stats: best times, streaks, and solves by difficulty
A calm design in traditional Japanese colours
English and Japanese
Fully offline. No account needed


■ Great for you if…
You love sudoku but want a fresh next puzzle
You'd rather deduce than guess
You want a quiet way to use your mind in spare minutes
You prefer calm, uncluttered puzzle apps
You'd like a small daily brain workout to keep up


■ Privacy & peace of mind
Suguru runs fully offline, with no server. Your records stay on your device only — no account, no sign-in. Ads are served non-personalized (no tracking).

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Premium | $4.99 | one-time |



## Version history (last 2 releases)

### 1.1 — 2026-08-01

Stability improvements and overall performance optimizations.

### 1.0 — 2026-07-14

No release notes.

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All apps by torankirite: https://appshunter.io/developer/1883564850

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-06.*